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Finding the Fourth Proportional to 159,625.60, 239,246.40 and 66,083.20

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Solution

The fourth proportional to 159,625.60, 239,246.40 and 66,083.20 is: 99,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,625.60 : 239,246.40 = 66,083.20 : x
  2. Step 2: Convert to fraction form
    159,625.60/239,246.40 = 66,083.20/x
  3. Step 3: Cross multiply
    159,625.60x = 239,246.40 × 66,083.20
  4. Step 4: Simplify right side
    159,625.60x = 15,810,167,700.48
  5. Step 5: Solve for x
    x = 15,810,167,700.48/159,625.60
  6. Step 6: Final answer
    x = 99,045.31

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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.