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Finding the Fourth Proportional to 134,299.85, 185,329.87 and 73,870.47

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Solution

The fourth proportional to 134,299.85, 185,329.87 and 73,870.47 is: 101,939.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,299.85 : 185,329.87 = 73,870.47 : x
  2. Step 2: Convert to fraction form
    134,299.85/185,329.87 = 73,870.47/x
  3. Step 3: Cross multiply
    134,299.85x = 185,329.87 × 73,870.47
  4. Step 4: Simplify right side
    134,299.85x = 13,690,404,232.59
  5. Step 5: Solve for x
    x = 13,690,404,232.59/134,299.85
  6. Step 6: Final answer
    x = 101,939.09

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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.