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Finding the Fourth Proportional to 138,340.52, 207,539.95 and 44,838.98

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Solution

The fourth proportional to 138,340.52, 207,539.95 and 44,838.98 is: 67,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,340.52 : 207,539.95 = 44,838.98 : x
  2. Step 2: Convert to fraction form
    138,340.52/207,539.95 = 44,838.98/x
  3. Step 3: Cross multiply
    138,340.52x = 207,539.95 × 44,838.98
  4. Step 4: Simplify right side
    138,340.52x = 9,305,880,421.10
  5. Step 5: Solve for x
    x = 9,305,880,421.10/138,340.52
  6. Step 6: Final answer
    x = 67,267.93

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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.