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Finding the Fourth Proportional to 91,702.38, 137,541.78 and 35,503.96

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Solution

The fourth proportional to 91,702.38, 137,541.78 and 35,503.96 is: 53,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,702.38 : 137,541.78 = 35,503.96 : x
  2. Step 2: Convert to fraction form
    91,702.38/137,541.78 = 35,503.96/x
  3. Step 3: Cross multiply
    91,702.38x = 137,541.78 × 35,503.96
  4. Step 4: Simplify right side
    91,702.38x = 4,883,277,855.45
  5. Step 5: Solve for x
    x = 4,883,277,855.45/91,702.38
  6. Step 6: Final answer
    x = 53,251.38

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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.