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Finding the Fourth Proportional to 96,657.90, 144,986.85 and 89,076.30

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Solution

The fourth proportional to 96,657.90, 144,986.85 and 89,076.30 is: 133,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,657.90 : 144,986.85 = 89,076.30 : x
  2. Step 2: Convert to fraction form
    96,657.90/144,986.85 = 89,076.30/x
  3. Step 3: Cross multiply
    96,657.90x = 144,986.85 × 89,076.30
  4. Step 4: Simplify right side
    96,657.90x = 12,914,892,146.66
  5. Step 5: Solve for x
    x = 12,914,892,146.66/96,657.90
  6. Step 6: Final answer
    x = 133,614.45

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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.