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Finding the Fourth Proportional to 437,805.79, 656,654.33 and 117,982.67

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Solution

The fourth proportional to 437,805.79, 656,654.33 and 117,982.67 is: 176,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,805.79 : 656,654.33 = 117,982.67 : x
  2. Step 2: Convert to fraction form
    437,805.79/656,654.33 = 117,982.67/x
  3. Step 3: Cross multiply
    437,805.79x = 656,654.33 × 117,982.67
  4. Step 4: Simplify right side
    437,805.79x = 77,473,828,132.15
  5. Step 5: Solve for x
    x = 77,473,828,132.15/437,805.79
  6. Step 6: Final answer
    x = 176,959.35

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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.