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Finding the Fourth Proportional to 79,354.60, 109,505.58 and 43,543.82

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Solution

The fourth proportional to 79,354.60, 109,505.58 and 43,543.82 is: 60,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,354.60 : 109,505.58 = 43,543.82 : x
  2. Step 2: Convert to fraction form
    79,354.60/109,505.58 = 43,543.82/x
  3. Step 3: Cross multiply
    79,354.60x = 109,505.58 × 43,543.82
  4. Step 4: Simplify right side
    79,354.60x = 4,768,291,264.52
  5. Step 5: Solve for x
    x = 4,768,291,264.52/79,354.60
  6. Step 6: Final answer
    x = 60,088.41

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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.