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Finding the Fourth Proportional to 96,191.40, 144,287.10 and 79,807.40

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Solution

The fourth proportional to 96,191.40, 144,287.10 and 79,807.40 is: 119,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,191.40 : 144,287.10 = 79,807.40 : x
  2. Step 2: Convert to fraction form
    96,191.40/144,287.10 = 79,807.40/x
  3. Step 3: Cross multiply
    96,191.40x = 144,287.10 × 79,807.40
  4. Step 4: Simplify right side
    96,191.40x = 11,515,178,304.54
  5. Step 5: Solve for x
    x = 11,515,178,304.54/96,191.40
  6. Step 6: Final answer
    x = 119,711.10

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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.