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Finding the Fourth Proportional to 381,235.60, 571,197.30 and 248,047.30

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Solution

The fourth proportional to 381,235.60, 571,197.30 and 248,047.30 is: 371,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,235.60 : 571,197.30 = 248,047.30 : x
  2. Step 2: Convert to fraction form
    381,235.60/571,197.30 = 248,047.30/x
  3. Step 3: Cross multiply
    381,235.60x = 571,197.30 × 248,047.30
  4. Step 4: Simplify right side
    381,235.60x = 141,683,948,032.29
  5. Step 5: Solve for x
    x = 141,683,948,032.29/381,235.60
  6. Step 6: Final answer
    x = 371,644.06

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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.