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Finding the Fourth Proportional to 162,733.32, 224,576.16 and 91,128.48

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Solution

The fourth proportional to 162,733.32, 224,576.16 and 91,128.48 is: 125,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,733.32 : 224,576.16 = 91,128.48 : x
  2. Step 2: Convert to fraction form
    162,733.32/224,576.16 = 91,128.48/x
  3. Step 3: Cross multiply
    162,733.32x = 224,576.16 × 91,128.48
  4. Step 4: Simplify right side
    162,733.32x = 20,465,284,105.04
  5. Step 5: Solve for x
    x = 20,465,284,105.04/162,733.32
  6. Step 6: Final answer
    x = 125,759.64

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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.