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Finding the Fourth Proportional to 83,832.80, 125,528.88 and 70,473.20

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Solution

The fourth proportional to 83,832.80, 125,528.88 and 70,473.20 is: 105,524.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,832.80 : 125,528.88 = 70,473.20 : x
  2. Step 2: Convert to fraction form
    83,832.80/125,528.88 = 70,473.20/x
  3. Step 3: Cross multiply
    83,832.80x = 125,528.88 × 70,473.20
  4. Step 4: Simplify right side
    83,832.80x = 8,846,421,866.02
  5. Step 5: Solve for x
    x = 8,846,421,866.02/83,832.80
  6. Step 6: Final answer
    x = 105,524.59

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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.