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Finding the Fourth Proportional to 91,602.84, 137,378.34 and 41,655

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Solution

The fourth proportional to 91,602.84, 137,378.34 and 41,655 is: 62,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,602.84 : 137,378.34 = 41,655 : x
  2. Step 2: Convert to fraction form
    91,602.84/137,378.34 = 41,655/x
  3. Step 3: Cross multiply
    91,602.84x = 137,378.34 × 41,655
  4. Step 4: Simplify right side
    91,602.84x = 5,722,494,752.70
  5. Step 5: Solve for x
    x = 5,722,494,752.70/91,602.84
  6. Step 6: Final answer
    x = 62,470.71

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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.