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Finding the Fourth Proportional to 114,288.60, 157,716.54 and 63,989.40

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Solution

The fourth proportional to 114,288.60, 157,716.54 and 63,989.40 is: 88,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,288.60 : 157,716.54 = 63,989.40 : x
  2. Step 2: Convert to fraction form
    114,288.60/157,716.54 = 63,989.40/x
  3. Step 3: Cross multiply
    114,288.60x = 157,716.54 × 63,989.40
  4. Step 4: Simplify right side
    114,288.60x = 10,092,186,764.68
  5. Step 5: Solve for x
    x = 10,092,186,764.68/114,288.60
  6. Step 6: Final answer
    x = 88,304.40

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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.