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Finding the Fourth Proportional to 91,702.34, 137,544.29 and 25,149.16

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Solution

The fourth proportional to 91,702.34, 137,544.29 and 25,149.16 is: 37,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,702.34 : 137,544.29 = 25,149.16 : x
  2. Step 2: Convert to fraction form
    91,702.34/137,544.29 = 25,149.16/x
  3. Step 3: Cross multiply
    91,702.34x = 137,544.29 × 25,149.16
  4. Step 4: Simplify right side
    91,702.34x = 3,459,122,542.83
  5. Step 5: Solve for x
    x = 3,459,122,542.83/91,702.34
  6. Step 6: Final answer
    x = 37,721.20

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Why These Related Problems?

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