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Finding the Fourth Proportional to 265,126.69, 397,752.32 and 87,633.70

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Solution

The fourth proportional to 265,126.69, 397,752.32 and 87,633.70 is: 131,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,126.69 : 397,752.32 = 87,633.70 : x
  2. Step 2: Convert to fraction form
    265,126.69/397,752.32 = 87,633.70/x
  3. Step 3: Cross multiply
    265,126.69x = 397,752.32 × 87,633.70
  4. Step 4: Simplify right side
    265,126.69x = 34,856,506,709.89
  5. Step 5: Solve for x
    x = 34,856,506,709.89/265,126.69
  6. Step 6: Final answer
    x = 131,471.14

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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.