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Finding the Fourth Proportional to 131,237.52, 181,091.52 and 73,869.84

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Solution

The fourth proportional to 131,237.52, 181,091.52 and 73,869.84 is: 101,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,237.52 : 181,091.52 = 73,869.84 : x
  2. Step 2: Convert to fraction form
    131,237.52/181,091.52 = 73,869.84/x
  3. Step 3: Cross multiply
    131,237.52x = 181,091.52 × 73,869.84
  4. Step 4: Simplify right side
    131,237.52x = 13,377,201,607.76
  5. Step 5: Solve for x
    x = 13,377,201,607.76/131,237.52
  6. Step 6: Final answer
    x = 101,931.23

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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.