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Finding the Fourth Proportional to 157,280.68, 235,687.66 and 115,523.56

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Solution

The fourth proportional to 157,280.68, 235,687.66 and 115,523.56 is: 173,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,280.68 : 235,687.66 = 115,523.56 : x
  2. Step 2: Convert to fraction form
    157,280.68/235,687.66 = 115,523.56/x
  3. Step 3: Cross multiply
    157,280.68x = 235,687.66 × 115,523.56
  4. Step 4: Simplify right side
    157,280.68x = 27,227,477,531.27
  5. Step 5: Solve for x
    x = 27,227,477,531.27/157,280.68
  6. Step 6: Final answer
    x = 173,113.94

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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.