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Finding the Fourth Proportional to 383,672.40, 575,551.80 and 117,430.80

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Solution

The fourth proportional to 383,672.40, 575,551.80 and 117,430.80 is: 176,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,672.40 : 575,551.80 = 117,430.80 : x
  2. Step 2: Convert to fraction form
    383,672.40/575,551.80 = 117,430.80/x
  3. Step 3: Cross multiply
    383,672.40x = 575,551.80 × 117,430.80
  4. Step 4: Simplify right side
    383,672.40x = 67,587,508,315.44
  5. Step 5: Solve for x
    x = 67,587,508,315.44/383,672.40
  6. Step 6: Final answer
    x = 176,159.42

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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.