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Finding the Fourth Proportional to 98,551.88, 136,002.20 and 53,839.88

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Solution

The fourth proportional to 98,551.88, 136,002.20 and 53,839.88 is: 74,299.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,551.88 : 136,002.20 = 53,839.88 : x
  2. Step 2: Convert to fraction form
    98,551.88/136,002.20 = 53,839.88/x
  3. Step 3: Cross multiply
    98,551.88x = 136,002.20 × 53,839.88
  4. Step 4: Simplify right side
    98,551.88x = 7,322,341,178.53
  5. Step 5: Solve for x
    x = 7,322,341,178.53/98,551.88
  6. Step 6: Final answer
    x = 74,299.36

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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.