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Finding the Fourth Proportional to 118,713.96, 178,070.85 and 39,827.97

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Solution

The fourth proportional to 118,713.96, 178,070.85 and 39,827.97 is: 59,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,713.96 : 178,070.85 = 39,827.97 : x
  2. Step 2: Convert to fraction form
    118,713.96/178,070.85 = 39,827.97/x
  3. Step 3: Cross multiply
    118,713.96x = 178,070.85 × 39,827.97
  4. Step 4: Simplify right side
    118,713.96x = 7,092,200,471.67
  5. Step 5: Solve for x
    x = 7,092,200,471.67/118,713.96
  6. Step 6: Final answer
    x = 59,741.92

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1.5x scale

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.