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Finding the Fourth Proportional to 157,596.47, 217,474.27 and 89,629.98

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Solution

The fourth proportional to 157,596.47, 217,474.27 and 89,629.98 is: 123,684.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,596.47 : 217,474.27 = 89,629.98 : x
  2. Step 2: Convert to fraction form
    157,596.47/217,474.27 = 89,629.98/x
  3. Step 3: Cross multiply
    157,596.47x = 217,474.27 × 89,629.98
  4. Step 4: Simplify right side
    157,596.47x = 19,492,214,470.61
  5. Step 5: Solve for x
    x = 19,492,214,470.61/157,596.47
  6. Step 6: Final answer
    x = 123,684.33

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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.