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Finding the Fourth Proportional to 157,373.15, 236,129.47 and 82,475.47

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Solution

The fourth proportional to 157,373.15, 236,129.47 and 82,475.47 is: 123,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,373.15 : 236,129.47 = 82,475.47 : x
  2. Step 2: Convert to fraction form
    157,373.15/236,129.47 = 82,475.47/x
  3. Step 3: Cross multiply
    157,373.15x = 236,129.47 × 82,475.47
  4. Step 4: Simplify right side
    157,373.15x = 19,474,888,606.72
  5. Step 5: Solve for x
    x = 19,474,888,606.72/157,373.15
  6. Step 6: Final answer
    x = 123,749.75

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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.