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Finding the Fourth Proportional to 212,882.77, 319,545.59 and 156,786.22

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Solution

The fourth proportional to 212,882.77, 319,545.59 and 156,786.22 is: 235,342.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,882.77 : 319,545.59 = 156,786.22 : x
  2. Step 2: Convert to fraction form
    212,882.77/319,545.59 = 156,786.22/x
  3. Step 3: Cross multiply
    212,882.77x = 319,545.59 × 156,786.22
  4. Step 4: Simplify right side
    212,882.77x = 50,100,345,173.77
  5. Step 5: Solve for x
    x = 50,100,345,173.77/212,882.77
  6. Step 6: Final answer
    x = 235,342.41

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1.5x scale

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.