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Finding the Fourth Proportional to 383,864.57, 575,776.08 and 117,625.87

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Solution

The fourth proportional to 383,864.57, 575,776.08 and 117,625.87 is: 176,432.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,864.57 : 575,776.08 = 117,625.87 : x
  2. Step 2: Convert to fraction form
    383,864.57/575,776.08 = 117,625.87/x
  3. Step 3: Cross multiply
    383,864.57x = 575,776.08 × 117,625.87
  4. Step 4: Simplify right side
    383,864.57x = 67,726,163,054.91
  5. Step 5: Solve for x
    x = 67,726,163,054.91/383,864.57
  6. Step 6: Final answer
    x = 176,432.44

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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.