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Finding the Fourth Proportional to 94,672.80, 141,836.40 and 57,693.60

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Solution

The fourth proportional to 94,672.80, 141,836.40 and 57,693.60 is: 86,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,672.80 : 141,836.40 = 57,693.60 : x
  2. Step 2: Convert to fraction form
    94,672.80/141,836.40 = 57,693.60/x
  3. Step 3: Cross multiply
    94,672.80x = 141,836.40 × 57,693.60
  4. Step 4: Simplify right side
    94,672.80x = 8,183,052,527.04
  5. Step 5: Solve for x
    x = 8,183,052,527.04/94,672.80
  6. Step 6: Final answer
    x = 86,435.10

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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.