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Finding the Fourth Proportional to 354,908.46, 532,458.45 and 155,246.70

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Solution

The fourth proportional to 354,908.46, 532,458.45 and 155,246.70 is: 232,911.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,908.46 : 532,458.45 = 155,246.70 : x
  2. Step 2: Convert to fraction form
    354,908.46/532,458.45 = 155,246.70/x
  3. Step 3: Cross multiply
    354,908.46x = 532,458.45 × 155,246.70
  4. Step 4: Simplify right side
    354,908.46x = 82,662,417,249.62
  5. Step 5: Solve for x
    x = 82,662,417,249.62/354,908.46
  6. Step 6: Final answer
    x = 232,911.94

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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.