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Finding the Fourth Proportional to 96,543.60, 144,815.40 and 79,954.80

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Solution

The fourth proportional to 96,543.60, 144,815.40 and 79,954.80 is: 119,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,543.60 : 144,815.40 = 79,954.80 : x
  2. Step 2: Convert to fraction form
    96,543.60/144,815.40 = 79,954.80/x
  3. Step 3: Cross multiply
    96,543.60x = 144,815.40 × 79,954.80
  4. Step 4: Simplify right side
    96,543.60x = 11,578,686,343.92
  5. Step 5: Solve for x
    x = 11,578,686,343.92/96,543.60
  6. Step 6: Final answer
    x = 119,932.20

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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.