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Finding the Fourth Proportional to 366,911.15, 550,366.73 and 156,959.15

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Solution

The fourth proportional to 366,911.15, 550,366.73 and 156,959.15 is: 235,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,911.15 : 550,366.73 = 156,959.15 : x
  2. Step 2: Convert to fraction form
    366,911.15/550,366.73 = 156,959.15/x
  3. Step 3: Cross multiply
    366,911.15x = 550,366.73 × 156,959.15
  4. Step 4: Simplify right side
    366,911.15x = 86,385,094,129.08
  5. Step 5: Solve for x
    x = 86,385,094,129.08/366,911.15
  6. Step 6: Final answer
    x = 235,438.73

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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.