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Finding the Fourth Proportional to 70,531.70, 97,335.88 and 38,702.75

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Solution

The fourth proportional to 70,531.70, 97,335.88 and 38,702.75 is: 53,410.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,531.70 : 97,335.88 = 38,702.75 : x
  2. Step 2: Convert to fraction form
    70,531.70/97,335.88 = 38,702.75/x
  3. Step 3: Cross multiply
    70,531.70x = 97,335.88 × 38,702.75
  4. Step 4: Simplify right side
    70,531.70x = 3,767,165,646.23
  5. Step 5: Solve for x
    x = 3,767,165,646.23/70,531.70
  6. Step 6: Final answer
    x = 53,410.96

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.