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Finding the Fourth Proportional to 95,212.80, 142,818.48 and 28,652.64

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Solution

The fourth proportional to 95,212.80, 142,818.48 and 28,652.64 is: 42,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,212.80 : 142,818.48 = 28,652.64 : x
  2. Step 2: Convert to fraction form
    95,212.80/142,818.48 = 28,652.64/x
  3. Step 3: Cross multiply
    95,212.80x = 142,818.48 × 28,652.64
  4. Step 4: Simplify right side
    95,212.80x = 4,092,126,492.79
  5. Step 5: Solve for x
    x = 4,092,126,492.79/95,212.80
  6. Step 6: Final answer
    x = 42,978.74

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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.