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Finding the Fourth Proportional to 79,655.40, 119,479.15 and 29,731.66

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Solution

The fourth proportional to 79,655.40, 119,479.15 and 29,731.66 is: 44,596.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,655.40 : 119,479.15 = 29,731.66 : x
  2. Step 2: Convert to fraction form
    79,655.40/119,479.15 = 29,731.66/x
  3. Step 3: Cross multiply
    79,655.40x = 119,479.15 × 29,731.66
  4. Step 4: Simplify right side
    79,655.40x = 3,552,313,203.36
  5. Step 5: Solve for x
    x = 3,552,313,203.36/79,655.40
  6. Step 6: Final answer
    x = 44,596.01

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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.