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Finding the Fourth Proportional to 97,354.42, 134,353.17 and 61,531.42

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Solution

The fourth proportional to 97,354.42, 134,353.17 and 61,531.42 is: 84,915.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,354.42 : 134,353.17 = 61,531.42 : x
  2. Step 2: Convert to fraction form
    97,354.42/134,353.17 = 61,531.42/x
  3. Step 3: Cross multiply
    97,354.42x = 134,353.17 × 61,531.42
  4. Step 4: Simplify right side
    97,354.42x = 8,266,941,331.60
  5. Step 5: Solve for x
    x = 8,266,941,331.60/97,354.42
  6. Step 6: Final answer
    x = 84,915.93

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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.