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Finding the Fourth Proportional to 114,679.50, 158,257.80 and 64,394.70

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Solution

The fourth proportional to 114,679.50, 158,257.80 and 64,394.70 is: 88,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,679.50 : 158,257.80 = 64,394.70 : x
  2. Step 2: Convert to fraction form
    114,679.50/158,257.80 = 64,394.70/x
  3. Step 3: Cross multiply
    114,679.50x = 158,257.80 × 64,394.70
  4. Step 4: Simplify right side
    114,679.50x = 10,190,963,553.66
  5. Step 5: Solve for x
    x = 10,190,963,553.66/114,679.50
  6. Step 6: Final answer
    x = 88,864.74

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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.