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Finding the Fourth Proportional to 383,490.36, 575,235.53 and 117,250.87

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Solution

The fourth proportional to 383,490.36, 575,235.53 and 117,250.87 is: 175,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,490.36 : 575,235.53 = 117,250.87 : x
  2. Step 2: Convert to fraction form
    383,490.36/575,235.53 = 117,250.87/x
  3. Step 3: Cross multiply
    383,490.36x = 575,235.53 × 117,250.87
  4. Step 4: Simplify right side
    383,490.36x = 67,446,866,347.41
  5. Step 5: Solve for x
    x = 67,446,866,347.41/383,490.36
  6. Step 6: Final answer
    x = 175,876.30

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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.