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Finding the Fourth Proportional to 356,744.32, 535,171.62 and 120,068.44

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Solution

The fourth proportional to 356,744.32, 535,171.62 and 120,068.44 is: 180,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,744.32 : 535,171.62 = 120,068.44 : x
  2. Step 2: Convert to fraction form
    356,744.32/535,171.62 = 120,068.44/x
  3. Step 3: Cross multiply
    356,744.32x = 535,171.62 × 120,068.44
  4. Step 4: Simplify right side
    356,744.32x = 64,257,221,545.67
  5. Step 5: Solve for x
    x = 64,257,221,545.67/356,744.32
  6. Step 6: Final answer
    x = 180,121.22

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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.