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Finding the Fourth Proportional to 110,585.60, 165,828.48 and 31,681.76

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Solution

The fourth proportional to 110,585.60, 165,828.48 and 31,681.76 is: 47,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,585.60 : 165,828.48 = 31,681.76 : x
  2. Step 2: Convert to fraction form
    110,585.60/165,828.48 = 31,681.76/x
  3. Step 3: Cross multiply
    110,585.60x = 165,828.48 × 31,681.76
  4. Step 4: Simplify right side
    110,585.60x = 5,253,738,104.52
  5. Step 5: Solve for x
    x = 5,253,738,104.52/110,585.60
  6. Step 6: Final answer
    x = 47,508.34

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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.