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Finding the Fourth Proportional to 113,520.96, 170,281.44 and 38,648.88

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Solution

The fourth proportional to 113,520.96, 170,281.44 and 38,648.88 is: 57,973.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,520.96 : 170,281.44 = 38,648.88 : x
  2. Step 2: Convert to fraction form
    113,520.96/170,281.44 = 38,648.88/x
  3. Step 3: Cross multiply
    113,520.96x = 170,281.44 × 38,648.88
  4. Step 4: Simplify right side
    113,520.96x = 6,581,186,940.79
  5. Step 5: Solve for x
    x = 6,581,186,940.79/113,520.96
  6. Step 6: Final answer
    x = 57,973.32

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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.