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Finding the Fourth Proportional to 338,634.88, 508,019.24 and 125,404.81

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Solution

The fourth proportional to 338,634.88, 508,019.24 and 125,404.81 is: 188,132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,634.88 : 508,019.24 = 125,404.81 : x
  2. Step 2: Convert to fraction form
    338,634.88/508,019.24 = 125,404.81/x
  3. Step 3: Cross multiply
    338,634.88x = 508,019.24 × 125,404.81
  4. Step 4: Simplify right side
    338,634.88x = 63,708,055,312.01
  5. Step 5: Solve for x
    x = 63,708,055,312.01/338,634.88
  6. Step 6: Final answer
    x = 188,132.00

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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.