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Finding the Fourth Proportional to 79,337.55, 118,728.24 and 56,872.96

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Solution

The fourth proportional to 79,337.55, 118,728.24 and 56,872.96 is: 85,110.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,337.55 : 118,728.24 = 56,872.96 : x
  2. Step 2: Convert to fraction form
    79,337.55/118,728.24 = 56,872.96/x
  3. Step 3: Cross multiply
    79,337.55x = 118,728.24 × 56,872.96
  4. Step 4: Simplify right side
    79,337.55x = 6,752,426,444.39
  5. Step 5: Solve for x
    x = 6,752,426,444.39/79,337.55
  6. Step 6: Final answer
    x = 85,110.10

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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.