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Finding the Fourth Proportional to 67,154.37, 100,699.15 and 39,080.69

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Solution

The fourth proportional to 67,154.37, 100,699.15 and 39,080.69 is: 58,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,154.37 : 100,699.15 = 39,080.69 : x
  2. Step 2: Convert to fraction form
    67,154.37/100,699.15 = 39,080.69/x
  3. Step 3: Cross multiply
    67,154.37x = 100,699.15 × 39,080.69
  4. Step 4: Simplify right side
    67,154.37x = 3,935,392,264.41
  5. Step 5: Solve for x
    x = 3,935,392,264.41/67,154.37
  6. Step 6: Final answer
    x = 58,602.18

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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.