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Finding the Fourth Proportional to 357,405.69, 535,951.08 and 167,919.92

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Solution

The fourth proportional to 357,405.69, 535,951.08 and 167,919.92 is: 251,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,405.69 : 535,951.08 = 167,919.92 : x
  2. Step 2: Convert to fraction form
    357,405.69/535,951.08 = 167,919.92/x
  3. Step 3: Cross multiply
    357,405.69x = 535,951.08 × 167,919.92
  4. Step 4: Simplify right side
    357,405.69x = 89,996,859,797.76
  5. Step 5: Solve for x
    x = 89,996,859,797.76/357,405.69
  6. Step 6: Final answer
    x = 251,805.90

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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.