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Finding the Fourth Proportional to 220,293.38, 304,019.90 and 124,800.86

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Solution

The fourth proportional to 220,293.38, 304,019.90 and 124,800.86 is: 172,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,293.38 : 304,019.90 = 124,800.86 : x
  2. Step 2: Convert to fraction form
    220,293.38/304,019.90 = 124,800.86/x
  3. Step 3: Cross multiply
    220,293.38x = 304,019.90 × 124,800.86
  4. Step 4: Simplify right side
    220,293.38x = 37,941,944,977.11
  5. Step 5: Solve for x
    x = 37,941,944,977.11/220,293.38
  6. Step 6: Final answer
    x = 172,233.70

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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.