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Finding the Fourth Proportional to 242,598.89, 363,953.70 and 74,143.17

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Solution

The fourth proportional to 242,598.89, 363,953.70 and 74,143.17 is: 111,231.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,598.89 : 363,953.70 = 74,143.17 : x
  2. Step 2: Convert to fraction form
    242,598.89/363,953.70 = 74,143.17/x
  3. Step 3: Cross multiply
    242,598.89x = 363,953.70 × 74,143.17
  4. Step 4: Simplify right side
    242,598.89x = 26,984,679,819.08
  5. Step 5: Solve for x
    x = 26,984,679,819.08/242,598.89
  6. Step 6: Final answer
    x = 111,231.67

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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.