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Finding the Fourth Proportional to 79,498.42, 118,988.01 and 58,432.90

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Solution

The fourth proportional to 79,498.42, 118,988.01 and 58,432.90 is: 87,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,498.42 : 118,988.01 = 58,432.90 : x
  2. Step 2: Convert to fraction form
    79,498.42/118,988.01 = 58,432.90/x
  3. Step 3: Cross multiply
    79,498.42x = 118,988.01 × 58,432.90
  4. Step 4: Simplify right side
    79,498.42x = 6,952,814,489.53
  5. Step 5: Solve for x
    x = 6,952,814,489.53/79,498.42
  6. Step 6: Final answer
    x = 87,458.52

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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.