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Finding the Fourth Proportional to 253,832.40, 380,348.05 and 93,687.91

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Solution

The fourth proportional to 253,832.40, 380,348.05 and 93,687.91 is: 140,384.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,832.40 : 380,348.05 = 93,687.91 : x
  2. Step 2: Convert to fraction form
    253,832.40/380,348.05 = 93,687.91/x
  3. Step 3: Cross multiply
    253,832.40x = 380,348.05 × 93,687.91
  4. Step 4: Simplify right side
    253,832.40x = 35,634,011,506.90
  5. Step 5: Solve for x
    x = 35,634,011,506.90/253,832.40
  6. Step 6: Final answer
    x = 140,384.02

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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.