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Finding the Fourth Proportional to 265,152.64, 397,791.15 and 87,658.45

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Solution

The fourth proportional to 265,152.64, 397,791.15 and 87,658.45 is: 131,508.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,152.64 : 397,791.15 = 87,658.45 : x
  2. Step 2: Convert to fraction form
    265,152.64/397,791.15 = 87,658.45/x
  3. Step 3: Cross multiply
    265,152.64x = 397,791.15 × 87,658.45
  4. Step 4: Simplify right side
    265,152.64x = 34,869,757,040.17
  5. Step 5: Solve for x
    x = 34,869,757,040.17/265,152.64
  6. Step 6: Final answer
    x = 131,508.24

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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.