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Finding the Fourth Proportional to 160,288.12, 240,454.06 and 66,772

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Solution

The fourth proportional to 160,288.12, 240,454.06 and 66,772 is: 100,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,288.12 : 240,454.06 = 66,772 : x
  2. Step 2: Convert to fraction form
    160,288.12/240,454.06 = 66,772/x
  3. Step 3: Cross multiply
    160,288.12x = 240,454.06 × 66,772
  4. Step 4: Simplify right side
    160,288.12x = 16,055,598,494.32
  5. Step 5: Solve for x
    x = 16,055,598,494.32/160,288.12
  6. Step 6: Final answer
    x = 100,167.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.