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Finding the Fourth Proportional to 359,239.50, 538,950.78 and 106,529.22

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Solution

The fourth proportional to 359,239.50, 538,950.78 and 106,529.22 is: 159,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,239.50 : 538,950.78 = 106,529.22 : x
  2. Step 2: Convert to fraction form
    359,239.50/538,950.78 = 106,529.22/x
  3. Step 3: Cross multiply
    359,239.50x = 538,950.78 × 106,529.22
  4. Step 4: Simplify right side
    359,239.50x = 57,414,006,211.79
  5. Step 5: Solve for x
    x = 57,414,006,211.79/359,239.50
  6. Step 6: Final answer
    x = 159,820.97

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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.