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Finding the Fourth Proportional to 220,475.16, 304,250.16 and 124,981.86

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Solution

The fourth proportional to 220,475.16, 304,250.16 and 124,981.86 is: 172,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,475.16 : 304,250.16 = 124,981.86 : x
  2. Step 2: Convert to fraction form
    220,475.16/304,250.16 = 124,981.86/x
  3. Step 3: Cross multiply
    220,475.16x = 304,250.16 × 124,981.86
  4. Step 4: Simplify right side
    220,475.16x = 38,025,750,902.10
  5. Step 5: Solve for x
    x = 38,025,750,902.10/220,475.16
  6. Step 6: Final answer
    x = 172,471.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.