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Finding the Fourth Proportional to 75,149.60, 103,695.60 and 41,615.52

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Solution

The fourth proportional to 75,149.60, 103,695.60 and 41,615.52 is: 57,423.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,149.60 : 103,695.60 = 41,615.52 : x
  2. Step 2: Convert to fraction form
    75,149.60/103,695.60 = 41,615.52/x
  3. Step 3: Cross multiply
    75,149.60x = 103,695.60 × 41,615.52
  4. Step 4: Simplify right side
    75,149.60x = 4,315,346,315.71
  5. Step 5: Solve for x
    x = 4,315,346,315.71/75,149.60
  6. Step 6: Final answer
    x = 57,423.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.