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Finding the Fourth Proportional to 91,692.47, 137,510.68 and 63,411.25

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Solution

The fourth proportional to 91,692.47, 137,510.68 and 63,411.25 is: 95,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,692.47 : 137,510.68 = 63,411.25 : x
  2. Step 2: Convert to fraction form
    91,692.47/137,510.68 = 63,411.25/x
  3. Step 3: Cross multiply
    91,692.47x = 137,510.68 × 63,411.25
  4. Step 4: Simplify right side
    91,692.47x = 8,719,724,107.15
  5. Step 5: Solve for x
    x = 8,719,724,107.15/91,692.47
  6. Step 6: Final answer
    x = 95,097.49

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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.