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Finding the Fourth Proportional to 439,349.76, 659,075.84 and 158,999.04

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Solution

The fourth proportional to 439,349.76, 659,075.84 and 158,999.04 is: 238,517.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,349.76 : 659,075.84 = 158,999.04 : x
  2. Step 2: Convert to fraction form
    439,349.76/659,075.84 = 158,999.04/x
  3. Step 3: Cross multiply
    439,349.76x = 659,075.84 × 158,999.04
  4. Step 4: Simplify right side
    439,349.76x = 104,792,425,847.19
  5. Step 5: Solve for x
    x = 104,792,425,847.19/439,349.76
  6. Step 6: Final answer
    x = 238,517.09

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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.