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Finding the Fourth Proportional to 113,172.90, 169,780.22 and 37,275.90

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Solution

The fourth proportional to 113,172.90, 169,780.22 and 37,275.90 is: 55,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,172.90 : 169,780.22 = 37,275.90 : x
  2. Step 2: Convert to fraction form
    113,172.90/169,780.22 = 37,275.90/x
  3. Step 3: Cross multiply
    113,172.90x = 169,780.22 × 37,275.90
  4. Step 4: Simplify right side
    113,172.90x = 6,328,710,502.70
  5. Step 5: Solve for x
    x = 6,328,710,502.70/113,172.90
  6. Step 6: Final answer
    x = 55,920.72

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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.