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Finding the Fourth Proportional to 383,616.64, 575,426.78 and 117,376.73

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Solution

The fourth proportional to 383,616.64, 575,426.78 and 117,376.73 is: 176,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,616.64 : 575,426.78 = 117,376.73 : x
  2. Step 2: Convert to fraction form
    383,616.64/575,426.78 = 117,376.73/x
  3. Step 3: Cross multiply
    383,616.64x = 575,426.78 × 117,376.73
  4. Step 4: Simplify right side
    383,616.64x = 67,541,713,790.83
  5. Step 5: Solve for x
    x = 67,541,713,790.83/383,616.64
  6. Step 6: Final answer
    x = 176,065.65

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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.