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Finding the Fourth Proportional to 114,894, 158,553.72 and 64,593.36

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Solution

The fourth proportional to 114,894, 158,553.72 and 64,593.36 is: 89,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,894 : 158,553.72 = 64,593.36 : x
  2. Step 2: Convert to fraction form
    114,894/158,553.72 = 64,593.36/x
  3. Step 3: Cross multiply
    114,894x = 158,553.72 × 64,593.36
  4. Step 4: Simplify right side
    114,894x = 10,241,517,515.30
  5. Step 5: Solve for x
    x = 10,241,517,515.30/114,894
  6. Step 6: Final answer
    x = 89,138.84

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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.