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Finding the Fourth Proportional to 101,046.63, 151,669.65 and 53,661.58

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Solution

The fourth proportional to 101,046.63, 151,669.65 and 53,661.58 is: 80,545.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,046.63 : 151,669.65 = 53,661.58 : x
  2. Step 2: Convert to fraction form
    101,046.63/151,669.65 = 53,661.58/x
  3. Step 3: Cross multiply
    101,046.63x = 151,669.65 × 53,661.58
  4. Step 4: Simplify right side
    101,046.63x = 8,138,833,447.86
  5. Step 5: Solve for x
    x = 8,138,833,447.86/101,046.63
  6. Step 6: Final answer
    x = 80,545.33

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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.