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Finding the Fourth Proportional to 383,630.97, 575,426.01 and 117,391.67

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Solution

The fourth proportional to 383,630.97, 575,426.01 and 117,391.67 is: 176,081.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,630.97 : 575,426.01 = 117,391.67 : x
  2. Step 2: Convert to fraction form
    383,630.97/575,426.01 = 117,391.67/x
  3. Step 3: Cross multiply
    383,630.97x = 575,426.01 × 117,391.67
  4. Step 4: Simplify right side
    383,630.97x = 67,550,220,275.34
  5. Step 5: Solve for x
    x = 67,550,220,275.34/383,630.97
  6. Step 6: Final answer
    x = 176,081.25

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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.