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Finding the Fourth Proportional to 238,771.13, 358,159.12 and 72,559.13

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Solution

The fourth proportional to 238,771.13, 358,159.12 and 72,559.13 is: 108,839.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,771.13 : 358,159.12 = 72,559.13 : x
  2. Step 2: Convert to fraction form
    238,771.13/358,159.12 = 72,559.13/x
  3. Step 3: Cross multiply
    238,771.13x = 358,159.12 × 72,559.13
  4. Step 4: Simplify right side
    238,771.13x = 25,987,712,176.57
  5. Step 5: Solve for x
    x = 25,987,712,176.57/238,771.13
  6. Step 6: Final answer
    x = 108,839.43

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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.