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Finding the Fourth Proportional to 101,288.61, 151,965.72 and 48,691.26

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Solution

The fourth proportional to 101,288.61, 151,965.72 and 48,691.26 is: 73,052.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,288.61 : 151,965.72 = 48,691.26 : x
  2. Step 2: Convert to fraction form
    101,288.61/151,965.72 = 48,691.26/x
  3. Step 3: Cross multiply
    101,288.61x = 151,965.72 × 48,691.26
  4. Step 4: Simplify right side
    101,288.61x = 7,399,402,383.61
  5. Step 5: Solve for x
    x = 7,399,402,383.61/101,288.61
  6. Step 6: Final answer
    x = 73,052.66

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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.