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Finding the Fourth Proportional to 91,734.60, 137,537.10 and 41,838.60

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Solution

The fourth proportional to 91,734.60, 137,537.10 and 41,838.60 is: 62,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,734.60 : 137,537.10 = 41,838.60 : x
  2. Step 2: Convert to fraction form
    91,734.60/137,537.10 = 41,838.60/x
  3. Step 3: Cross multiply
    91,734.60x = 137,537.10 × 41,838.60
  4. Step 4: Simplify right side
    91,734.60x = 5,754,359,712.06
  5. Step 5: Solve for x
    x = 5,754,359,712.06/91,734.60
  6. Step 6: Final answer
    x = 62,728.35

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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.