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Finding the Fourth Proportional to 220,109,181.80, 330,163,772.70 and 216,707,959.40

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Solution

The fourth proportional to 220,109,181.80, 330,163,772.70 and 216,707,959.40 is: 325,061,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,109,181.80 : 330,163,772.70 = 216,707,959.40 : x
  2. Step 2: Convert to fraction form
    220,109,181.80/330,163,772.70 = 216,707,959.40/x
  3. Step 3: Cross multiply
    220,109,181.80x = 330,163,772.70 × 216,707,959.40
  4. Step 4: Simplify right side
    220,109,181.80x = 71,549,117,449,622,424
  5. Step 5: Solve for x
    x = 71,549,117,449,622,424/220,109,181.80
  6. Step 6: Final answer
    x = 325,061,939.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.