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Finding the Fourth Proportional to 157,396.95, 217,182.96 and 88,472.82

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Solution

The fourth proportional to 157,396.95, 217,182.96 and 88,472.82 is: 122,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,396.95 : 217,182.96 = 88,472.82 : x
  2. Step 2: Convert to fraction form
    157,396.95/217,182.96 = 88,472.82/x
  3. Step 3: Cross multiply
    157,396.95x = 217,182.96 × 88,472.82
  4. Step 4: Simplify right side
    157,396.95x = 19,214,788,927.15
  5. Step 5: Solve for x
    x = 19,214,788,927.15/157,396.95
  6. Step 6: Final answer
    x = 122,078.53

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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.