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Finding the Fourth Proportional to 216,015.80, 323,870.10 and 82,844.60

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Solution

The fourth proportional to 216,015.80, 323,870.10 and 82,844.60 is: 124,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,015.80 : 323,870.10 = 82,844.60 : x
  2. Step 2: Convert to fraction form
    216,015.80/323,870.10 = 82,844.60/x
  3. Step 3: Cross multiply
    216,015.80x = 323,870.10 × 82,844.60
  4. Step 4: Simplify right side
    216,015.80x = 26,830,888,886.46
  5. Step 5: Solve for x
    x = 26,830,888,886.46/216,015.80
  6. Step 6: Final answer
    x = 124,207.99

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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.