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Finding the Fourth Proportional to 96,751.80, 145,127.70 and 56,729.70

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Solution

The fourth proportional to 96,751.80, 145,127.70 and 56,729.70 is: 85,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,751.80 : 145,127.70 = 56,729.70 : x
  2. Step 2: Convert to fraction form
    96,751.80/145,127.70 = 56,729.70/x
  3. Step 3: Cross multiply
    96,751.80x = 145,127.70 × 56,729.70
  4. Step 4: Simplify right side
    96,751.80x = 8,233,050,882.69
  5. Step 5: Solve for x
    x = 8,233,050,882.69/96,751.80
  6. Step 6: Final answer
    x = 85,094.55

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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.