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Finding the Fourth Proportional to 95,017.80, 142,469.10 and 47,577.72

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Solution

The fourth proportional to 95,017.80, 142,469.10 and 47,577.72 is: 71,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,017.80 : 142,469.10 = 47,577.72 : x
  2. Step 2: Convert to fraction form
    95,017.80/142,469.10 = 47,577.72/x
  3. Step 3: Cross multiply
    95,017.80x = 142,469.10 × 47,577.72
  4. Step 4: Simplify right side
    95,017.80x = 6,778,354,948.45
  5. Step 5: Solve for x
    x = 6,778,354,948.45/95,017.80
  6. Step 6: Final answer
    x = 71,337.74

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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.