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Finding the Fourth Proportional to 359,847.40, 539,511.90 and 202,124.20

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Solution

The fourth proportional to 359,847.40, 539,511.90 and 202,124.20 is: 303,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,847.40 : 539,511.90 = 202,124.20 : x
  2. Step 2: Convert to fraction form
    359,847.40/539,511.90 = 202,124.20/x
  3. Step 3: Cross multiply
    359,847.40x = 539,511.90 × 202,124.20
  4. Step 4: Simplify right side
    359,847.40x = 109,048,411,177.98
  5. Step 5: Solve for x
    x = 109,048,411,177.98/359,847.40
  6. Step 6: Final answer
    x = 303,040.71

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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.