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Finding the Fourth Proportional to 356,715.27, 535,155.26 and 120,052.17

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Solution

The fourth proportional to 356,715.27, 535,155.26 and 120,052.17 is: 180,105.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,715.27 : 535,155.26 = 120,052.17 : x
  2. Step 2: Convert to fraction form
    356,715.27/535,155.26 = 120,052.17/x
  3. Step 3: Cross multiply
    356,715.27x = 535,155.26 × 120,052.17
  4. Step 4: Simplify right side
    356,715.27x = 64,246,549,649.65
  5. Step 5: Solve for x
    x = 64,246,549,649.65/356,715.27
  6. Step 6: Final answer
    x = 180,105.97

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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.