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Finding the Fourth Proportional to 477,061.68, 715,617.32 and 122,078.96

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Solution

The fourth proportional to 477,061.68, 715,617.32 and 122,078.96 is: 183,124.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,061.68 : 715,617.32 = 122,078.96 : x
  2. Step 2: Convert to fraction form
    477,061.68/715,617.32 = 122,078.96/x
  3. Step 3: Cross multiply
    477,061.68x = 715,617.32 × 122,078.96
  4. Step 4: Simplify right side
    477,061.68x = 87,361,818,183.59
  5. Step 5: Solve for x
    x = 87,361,818,183.59/477,061.68
  6. Step 6: Final answer
    x = 183,124.79

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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.