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Finding the Fourth Proportional to 104,047.90, 155,807.85 and 57,247.90

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Solution

The fourth proportional to 104,047.90, 155,807.85 and 57,247.90 is: 85,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,047.90 : 155,807.85 = 57,247.90 : x
  2. Step 2: Convert to fraction form
    104,047.90/155,807.85 = 57,247.90/x
  3. Step 3: Cross multiply
    104,047.90x = 155,807.85 × 57,247.90
  4. Step 4: Simplify right side
    104,047.90x = 8,919,672,216.02
  5. Step 5: Solve for x
    x = 8,919,672,216.02/104,047.90
  6. Step 6: Final answer
    x = 85,726.60

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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.