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Finding the Fourth Proportional to 389,241, 583,861.50 and 93,753

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Solution

The fourth proportional to 389,241, 583,861.50 and 93,753 is: 140,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,241 : 583,861.50 = 93,753 : x
  2. Step 2: Convert to fraction form
    389,241/583,861.50 = 93,753/x
  3. Step 3: Cross multiply
    389,241x = 583,861.50 × 93,753
  4. Step 4: Simplify right side
    389,241x = 54,738,767,209.50
  5. Step 5: Solve for x
    x = 54,738,767,209.50/389,241
  6. Step 6: Final answer
    x = 140,629.50

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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.