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Finding the Fourth Proportional to 124,603.38, 186,839.39 and 54,400.68

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Solution

The fourth proportional to 124,603.38, 186,839.39 and 54,400.68 is: 81,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,603.38 : 186,839.39 = 54,400.68 : x
  2. Step 2: Convert to fraction form
    124,603.38/186,839.39 = 54,400.68/x
  3. Step 3: Cross multiply
    124,603.38x = 186,839.39 × 54,400.68
  4. Step 4: Simplify right side
    124,603.38x = 10,164,189,263.69
  5. Step 5: Solve for x
    x = 10,164,189,263.69/124,603.38
  6. Step 6: Final answer
    x = 81,572.34

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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.