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Finding the Fourth Proportional to 138,468.30, 207,685.98 and 44,973.96

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Solution

The fourth proportional to 138,468.30, 207,685.98 and 44,973.96 is: 67,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,468.30 : 207,685.98 = 44,973.96 : x
  2. Step 2: Convert to fraction form
    138,468.30/207,685.98 = 44,973.96/x
  3. Step 3: Cross multiply
    138,468.30x = 207,685.98 × 44,973.96
  4. Step 4: Simplify right side
    138,468.30x = 9,340,460,957.08
  5. Step 5: Solve for x
    x = 9,340,460,957.08/138,468.30
  6. Step 6: Final answer
    x = 67,455.59

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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.