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Finding the Fourth Proportional to 124,354.79, 171,609.60 and 67,766.16

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Solution

The fourth proportional to 124,354.79, 171,609.60 and 67,766.16 is: 93,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,354.79 : 171,609.60 = 67,766.16 : x
  2. Step 2: Convert to fraction form
    124,354.79/171,609.60 = 67,766.16/x
  3. Step 3: Cross multiply
    124,354.79x = 171,609.60 × 67,766.16
  4. Step 4: Simplify right side
    124,354.79x = 11,629,323,611.14
  5. Step 5: Solve for x
    x = 11,629,323,611.14/124,354.79
  6. Step 6: Final answer
    x = 93,517.30

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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.