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Finding the Fourth Proportional to 79,358.90, 109,516.95 and 43,548.89

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Solution

The fourth proportional to 79,358.90, 109,516.95 and 43,548.89 is: 60,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.90 : 109,516.95 = 43,548.89 : x
  2. Step 2: Convert to fraction form
    79,358.90/109,516.95 = 43,548.89/x
  3. Step 3: Cross multiply
    79,358.90x = 109,516.95 × 43,548.89
  4. Step 4: Simplify right side
    79,358.90x = 4,769,341,061.10
  5. Step 5: Solve for x
    x = 4,769,341,061.10/79,358.90
  6. Step 6: Final answer
    x = 60,098.38

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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.