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Finding the Fourth Proportional to 359,617.44, 539,285.94 and 134,855.40

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Solution

The fourth proportional to 359,617.44, 539,285.94 and 134,855.40 is: 202,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,617.44 : 539,285.94 = 134,855.40 : x
  2. Step 2: Convert to fraction form
    359,617.44/539,285.94 = 134,855.40/x
  3. Step 3: Cross multiply
    359,617.44x = 539,285.94 × 134,855.40
  4. Step 4: Simplify right side
    359,617.44x = 72,725,621,153.08
  5. Step 5: Solve for x
    x = 72,725,621,153.08/359,617.44
  6. Step 6: Final answer
    x = 202,230.52

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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.