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Finding the Fourth Proportional to 138,400.04, 207,629.22 and 44,898.50

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Solution

The fourth proportional to 138,400.04, 207,629.22 and 44,898.50 is: 67,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,400.04 : 207,629.22 = 44,898.50 : x
  2. Step 2: Convert to fraction form
    138,400.04/207,629.22 = 44,898.50/x
  3. Step 3: Cross multiply
    138,400.04x = 207,629.22 × 44,898.50
  4. Step 4: Simplify right side
    138,400.04x = 9,322,240,534.17
  5. Step 5: Solve for x
    x = 9,322,240,534.17/138,400.04
  6. Step 6: Final answer
    x = 67,357.21

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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.