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Finding the Fourth Proportional to 139,459.55, 209,203.16 and 44,665.92

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Solution

The fourth proportional to 139,459.55, 209,203.16 and 44,665.92 is: 67,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,459.55 : 209,203.16 = 44,665.92 : x
  2. Step 2: Convert to fraction form
    139,459.55/209,203.16 = 44,665.92/x
  3. Step 3: Cross multiply
    139,459.55x = 209,203.16 × 44,665.92
  4. Step 4: Simplify right side
    139,459.55x = 9,344,251,384.98
  5. Step 5: Solve for x
    x = 9,344,251,384.98/139,459.55
  6. Step 6: Final answer
    x = 67,003.31

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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.