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Finding the Fourth Proportional to 411,708.75, 617,089.20 and 158,877.43

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Solution

The fourth proportional to 411,708.75, 617,089.20 and 158,877.43 is: 238,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,708.75 : 617,089.20 = 158,877.43 : x
  2. Step 2: Convert to fraction form
    411,708.75/617,089.20 = 158,877.43/x
  3. Step 3: Cross multiply
    411,708.75x = 617,089.20 × 158,877.43
  4. Step 4: Simplify right side
    411,708.75x = 98,041,546,176.76
  5. Step 5: Solve for x
    x = 98,041,546,176.76/411,708.75
  6. Step 6: Final answer
    x = 238,133.26

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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.