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Finding the Fourth Proportional to 114,490.79, 157,893.87 and 71,474.26

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Solution

The fourth proportional to 114,490.79, 157,893.87 and 71,474.26 is: 98,569.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,490.79 : 157,893.87 = 71,474.26 : x
  2. Step 2: Convert to fraction form
    114,490.79/157,893.87 = 71,474.26/x
  3. Step 3: Cross multiply
    114,490.79x = 157,893.87 × 71,474.26
  4. Step 4: Simplify right side
    114,490.79x = 11,285,346,369.95
  5. Step 5: Solve for x
    x = 11,285,346,369.95/114,490.79
  6. Step 6: Final answer
    x = 98,569.91

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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.