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Finding the Fourth Proportional to 96,656.40, 144,984.60 and 89,074.80

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Solution

The fourth proportional to 96,656.40, 144,984.60 and 89,074.80 is: 133,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,656.40 : 144,984.60 = 89,074.80 : x
  2. Step 2: Convert to fraction form
    96,656.40/144,984.60 = 89,074.80/x
  3. Step 3: Cross multiply
    96,656.40x = 144,984.60 × 89,074.80
  4. Step 4: Simplify right side
    96,656.40x = 12,914,474,248.08
  5. Step 5: Solve for x
    x = 12,914,474,248.08/96,656.40
  6. Step 6: Final answer
    x = 133,612.20

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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.