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Finding the Fourth Proportional to 268,388.46, 402,631.97 and 88,484.49

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Solution

The fourth proportional to 268,388.46, 402,631.97 and 88,484.49 is: 132,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,388.46 : 402,631.97 = 88,484.49 : x
  2. Step 2: Convert to fraction form
    268,388.46/402,631.97 = 88,484.49/x
  3. Step 3: Cross multiply
    268,388.46x = 402,631.97 × 88,484.49
  4. Step 4: Simplify right side
    268,388.46x = 35,626,684,080.72
  5. Step 5: Solve for x
    x = 35,626,684,080.72/268,388.46
  6. Step 6: Final answer
    x = 132,742.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.