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Finding the Fourth Proportional to 79,511.80, 119,155.62 and 62,798.20

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Solution

The fourth proportional to 79,511.80, 119,155.62 and 62,798.20 is: 94,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,511.80 : 119,155.62 = 62,798.20 : x
  2. Step 2: Convert to fraction form
    79,511.80/119,155.62 = 62,798.20/x
  3. Step 3: Cross multiply
    79,511.80x = 119,155.62 × 62,798.20
  4. Step 4: Simplify right side
    79,511.80x = 7,482,758,455.88
  5. Step 5: Solve for x
    x = 7,482,758,455.88/79,511.80
  6. Step 6: Final answer
    x = 94,108.78

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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.