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Finding the Fourth Proportional to 251,446.24, 346,996.53 and 136,724.93

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Solution

The fourth proportional to 251,446.24, 346,996.53 and 136,724.93 is: 188,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,446.24 : 346,996.53 = 136,724.93 : x
  2. Step 2: Convert to fraction form
    251,446.24/346,996.53 = 136,724.93/x
  3. Step 3: Cross multiply
    251,446.24x = 346,996.53 × 136,724.93
  4. Step 4: Simplify right side
    251,446.24x = 47,443,073,855.89
  5. Step 5: Solve for x
    x = 47,443,073,855.89/251,446.24
  6. Step 6: Final answer
    x = 188,680.79

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1.5x scale

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.