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Finding the Fourth Proportional to 150,612.71, 225,780.59 and 65,170.22

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Solution

The fourth proportional to 150,612.71, 225,780.59 and 65,170.22 is: 97,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,612.71 : 225,780.59 = 65,170.22 : x
  2. Step 2: Convert to fraction form
    150,612.71/225,780.59 = 65,170.22/x
  3. Step 3: Cross multiply
    150,612.71x = 225,780.59 × 65,170.22
  4. Step 4: Simplify right side
    150,612.71x = 14,714,169,593.13
  5. Step 5: Solve for x
    x = 14,714,169,593.13/150,612.71
  6. Step 6: Final answer
    x = 97,695.40

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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.