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Finding the Fourth Proportional to 60,702.30, 91,053.45 and 57,008.70

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Solution

The fourth proportional to 60,702.30, 91,053.45 and 57,008.70 is: 85,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,702.30 : 91,053.45 = 57,008.70 : x
  2. Step 2: Convert to fraction form
    60,702.30/91,053.45 = 57,008.70/x
  3. Step 3: Cross multiply
    60,702.30x = 91,053.45 × 57,008.70
  4. Step 4: Simplify right side
    60,702.30x = 5,190,838,815.02
  5. Step 5: Solve for x
    x = 5,190,838,815.02/60,702.30
  6. Step 6: Final answer
    x = 85,513.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.