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Finding the Fourth Proportional to 91,702.80, 137,565.48 and 35,543.84

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Solution

The fourth proportional to 91,702.80, 137,565.48 and 35,543.84 is: 53,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,702.80 : 137,565.48 = 35,543.84 : x
  2. Step 2: Convert to fraction form
    91,702.80/137,565.48 = 35,543.84/x
  3. Step 3: Cross multiply
    91,702.80x = 137,565.48 × 35,543.84
  4. Step 4: Simplify right side
    91,702.80x = 4,889,605,410.64
  5. Step 5: Solve for x
    x = 4,889,605,410.64/91,702.80
  6. Step 6: Final answer
    x = 53,320.13

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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.