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Finding the Fourth Proportional to 157,751.42, 236,627.74 and 39,422.88

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Solution

The fourth proportional to 157,751.42, 236,627.74 and 39,422.88 is: 59,134.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,751.42 : 236,627.74 = 39,422.88 : x
  2. Step 2: Convert to fraction form
    157,751.42/236,627.74 = 39,422.88/x
  3. Step 3: Cross multiply
    157,751.42x = 236,627.74 × 39,422.88
  4. Step 4: Simplify right side
    157,751.42x = 9,328,546,998.69
  5. Step 5: Solve for x
    x = 9,328,546,998.69/157,751.42
  6. Step 6: Final answer
    x = 59,134.47

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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.