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Finding the Fourth Proportional to 118,034.24, 162,889.08 and 64,319.24

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Solution

The fourth proportional to 118,034.24, 162,889.08 and 64,319.24 is: 88,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,034.24 : 162,889.08 = 64,319.24 : x
  2. Step 2: Convert to fraction form
    118,034.24/162,889.08 = 64,319.24/x
  3. Step 3: Cross multiply
    118,034.24x = 162,889.08 × 64,319.24
  4. Step 4: Simplify right side
    118,034.24x = 10,476,901,829.90
  5. Step 5: Solve for x
    x = 10,476,901,829.90/118,034.24
  6. Step 6: Final answer
    x = 88,761.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.