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Finding the Fourth Proportional to 359,890.32, 540,163.08 and 191,551.98

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Solution

The fourth proportional to 359,890.32, 540,163.08 and 191,551.98 is: 287,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,890.32 : 540,163.08 = 191,551.98 : x
  2. Step 2: Convert to fraction form
    359,890.32/540,163.08 = 191,551.98/x
  3. Step 3: Cross multiply
    359,890.32x = 540,163.08 × 191,551.98
  4. Step 4: Simplify right side
    359,890.32x = 103,469,307,496.90
  5. Step 5: Solve for x
    x = 103,469,307,496.90/359,890.32
  6. Step 6: Final answer
    x = 287,502.34

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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.