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Finding the Fourth Proportional to 175,503.90, 263,255.85 and 155,164.80

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Solution

The fourth proportional to 175,503.90, 263,255.85 and 155,164.80 is: 232,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,503.90 : 263,255.85 = 155,164.80 : x
  2. Step 2: Convert to fraction form
    175,503.90/263,255.85 = 155,164.80/x
  3. Step 3: Cross multiply
    175,503.90x = 263,255.85 × 155,164.80
  4. Step 4: Simplify right side
    175,503.90x = 40,848,041,314.08
  5. Step 5: Solve for x
    x = 40,848,041,314.08/175,503.90
  6. Step 6: Final answer
    x = 232,747.20

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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.