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Finding the Fourth Proportional to 157,371.40, 236,126.84 and 82,473.72

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Solution

The fourth proportional to 157,371.40, 236,126.84 and 82,473.72 is: 123,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,371.40 : 236,126.84 = 82,473.72 : x
  2. Step 2: Convert to fraction form
    157,371.40/236,126.84 = 82,473.72/x
  3. Step 3: Cross multiply
    157,371.40x = 236,126.84 × 82,473.72
  4. Step 4: Simplify right side
    157,371.40x = 19,474,258,886.64
  5. Step 5: Solve for x
    x = 19,474,258,886.64/157,371.40
  6. Step 6: Final answer
    x = 123,747.13

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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.