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Finding the Fourth Proportional to 110,385.65, 165,478.63 and 40,248.56

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Solution

The fourth proportional to 110,385.65, 165,478.63 and 40,248.56 is: 60,336.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,385.65 : 165,478.63 = 40,248.56 : x
  2. Step 2: Convert to fraction form
    110,385.65/165,478.63 = 40,248.56/x
  3. Step 3: Cross multiply
    110,385.65x = 165,478.63 × 40,248.56
  4. Step 4: Simplify right side
    110,385.65x = 6,660,276,568.27
  5. Step 5: Solve for x
    x = 6,660,276,568.27/110,385.65
  6. Step 6: Final answer
    x = 60,336.43

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1.5x scale

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.