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Finding the Fourth Proportional to 71,548.97, 98,681.24 and 63,381.32

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Solution

The fourth proportional to 71,548.97, 98,681.24 and 63,381.32 is: 87,416.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,548.97 : 98,681.24 = 63,381.32 : x
  2. Step 2: Convert to fraction form
    71,548.97/98,681.24 = 63,381.32/x
  3. Step 3: Cross multiply
    71,548.97x = 98,681.24 × 63,381.32
  4. Step 4: Simplify right side
    71,548.97x = 6,254,546,440.12
  5. Step 5: Solve for x
    x = 6,254,546,440.12/71,548.97
  6. Step 6: Final answer
    x = 87,416.31

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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.