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Finding the Fourth Proportional to 113,374.70, 170,080.05 and 38,501.90

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Solution

The fourth proportional to 113,374.70, 170,080.05 and 38,501.90 is: 57,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,374.70 : 170,080.05 = 38,501.90 : x
  2. Step 2: Convert to fraction form
    113,374.70/170,080.05 = 38,501.90/x
  3. Step 3: Cross multiply
    113,374.70x = 170,080.05 × 38,501.90
  4. Step 4: Simplify right side
    113,374.70x = 6,548,405,077.10
  5. Step 5: Solve for x
    x = 6,548,405,077.10/113,374.70
  6. Step 6: Final answer
    x = 57,758.96

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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.