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Finding the Fourth Proportional to 79,498.92, 118,988.76 and 58,433.40

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Solution

The fourth proportional to 79,498.92, 118,988.76 and 58,433.40 is: 87,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,498.92 : 118,988.76 = 58,433.40 : x
  2. Step 2: Convert to fraction form
    79,498.92/118,988.76 = 58,433.40/x
  3. Step 3: Cross multiply
    79,498.92x = 118,988.76 × 58,433.40
  4. Step 4: Simplify right side
    79,498.92x = 6,952,917,808.58
  5. Step 5: Solve for x
    x = 6,952,917,808.58/79,498.92
  6. Step 6: Final answer
    x = 87,459.27

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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.