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Finding the Fourth Proportional to 154,047.60, 231,071.40 and 54,320.40

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Solution

The fourth proportional to 154,047.60, 231,071.40 and 54,320.40 is: 81,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,047.60 : 231,071.40 = 54,320.40 : x
  2. Step 2: Convert to fraction form
    154,047.60/231,071.40 = 54,320.40/x
  3. Step 3: Cross multiply
    154,047.60x = 231,071.40 × 54,320.40
  4. Step 4: Simplify right side
    154,047.60x = 12,551,890,876.56
  5. Step 5: Solve for x
    x = 12,551,890,876.56/154,047.60
  6. Step 6: Final answer
    x = 81,480.60

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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.