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Finding the Fourth Proportional to 220,547.80, 308,101.10 and 220,547.80

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Solution

The fourth proportional to 220,547.80, 308,101.10 and 220,547.80 is: 308,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,547.80 : 308,101.10 = 220,547.80 : x
  2. Step 2: Convert to fraction form
    220,547.80/308,101.10 = 220,547.80/x
  3. Step 3: Cross multiply
    220,547.80x = 308,101.10 × 220,547.80
  4. Step 4: Simplify right side
    220,547.80x = 67,951,019,782.58
  5. Step 5: Solve for x
    x = 67,951,019,782.58/220,547.80
  6. Step 6: Final answer
    x = 308,101.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.