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Finding the Fourth Proportional to 268,598.34, 402,956.15 and 88,691.67

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Solution

The fourth proportional to 268,598.34, 402,956.15 and 88,691.67 is: 133,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,598.34 : 402,956.15 = 88,691.67 : x
  2. Step 2: Convert to fraction form
    268,598.34/402,956.15 = 88,691.67/x
  3. Step 3: Cross multiply
    268,598.34x = 402,956.15 × 88,691.67
  4. Step 4: Simplify right side
    268,598.34x = 35,738,853,436.81
  5. Step 5: Solve for x
    x = 35,738,853,436.81/268,598.34
  6. Step 6: Final answer
    x = 133,056.87

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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.