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Finding the Fourth Proportional to 107,976.66, 148,998.44 and 69,737.87

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Solution

The fourth proportional to 107,976.66, 148,998.44 and 69,737.87 is: 96,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,976.66 : 148,998.44 = 69,737.87 : x
  2. Step 2: Convert to fraction form
    107,976.66/148,998.44 = 69,737.87/x
  3. Step 3: Cross multiply
    107,976.66x = 148,998.44 × 69,737.87
  4. Step 4: Simplify right side
    107,976.66x = 10,390,834,385.76
  5. Step 5: Solve for x
    x = 10,390,834,385.76/107,976.66
  6. Step 6: Final answer
    x = 96,232.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.