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Finding the Fourth Proportional to 124,960.40, 172,446.60 and 68,374.16

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Solution

The fourth proportional to 124,960.40, 172,446.60 and 68,374.16 is: 94,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,960.40 : 172,446.60 = 68,374.16 : x
  2. Step 2: Convert to fraction form
    124,960.40/172,446.60 = 68,374.16/x
  3. Step 3: Cross multiply
    124,960.40x = 172,446.60 × 68,374.16
  4. Step 4: Simplify right side
    124,960.40x = 11,790,891,419.86
  5. Step 5: Solve for x
    x = 11,790,891,419.86/124,960.40
  6. Step 6: Final answer
    x = 94,357.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.