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Finding the Fourth Proportional to 440,761.15, 661,390.83 and 188,017.76

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Solution

The fourth proportional to 440,761.15, 661,390.83 and 188,017.76 is: 282,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,761.15 : 661,390.83 = 188,017.76 : x
  2. Step 2: Convert to fraction form
    440,761.15/661,390.83 = 188,017.76/x
  3. Step 3: Cross multiply
    440,761.15x = 661,390.83 × 188,017.76
  4. Step 4: Simplify right side
    440,761.15x = 124,353,220,538.69
  5. Step 5: Solve for x
    x = 124,353,220,538.69/440,761.15
  6. Step 6: Final answer
    x = 282,132.90

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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.