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Finding the Fourth Proportional to 383,553.79, 575,353.76 and 117,316.61

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Solution

The fourth proportional to 383,553.79, 575,353.76 and 117,316.61 is: 175,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,553.79 : 575,353.76 = 117,316.61 : x
  2. Step 2: Convert to fraction form
    383,553.79/575,353.76 = 117,316.61/x
  3. Step 3: Cross multiply
    383,553.79x = 575,353.76 × 117,316.61
  4. Step 4: Simplify right side
    383,553.79x = 67,498,554,244.95
  5. Step 5: Solve for x
    x = 67,498,554,244.95/383,553.79
  6. Step 6: Final answer
    x = 175,981.98

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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.