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Finding the Fourth Proportional to 124,654.92, 172,023.78 and 68,066.34

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Solution

The fourth proportional to 124,654.92, 172,023.78 and 68,066.34 is: 93,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,654.92 : 172,023.78 = 68,066.34 : x
  2. Step 2: Convert to fraction form
    124,654.92/172,023.78 = 68,066.34/x
  3. Step 3: Cross multiply
    124,654.92x = 172,023.78 × 68,066.34
  4. Step 4: Simplify right side
    124,654.92x = 11,709,029,097.57
  5. Step 5: Solve for x
    x = 11,709,029,097.57/124,654.92
  6. Step 6: Final answer
    x = 93,931.54

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1.5x scale

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.