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Finding the Fourth Proportional to 91,813.96, 137,702.70 and 41,880.52

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Solution

The fourth proportional to 91,813.96, 137,702.70 and 41,880.52 is: 62,812.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,813.96 : 137,702.70 = 41,880.52 : x
  2. Step 2: Convert to fraction form
    91,813.96/137,702.70 = 41,880.52/x
  3. Step 3: Cross multiply
    91,813.96x = 137,702.70 × 41,880.52
  4. Step 4: Simplify right side
    91,813.96x = 5,767,060,681.40
  5. Step 5: Solve for x
    x = 5,767,060,681.40/91,813.96
  6. Step 6: Final answer
    x = 62,812.46

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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.