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Finding the Fourth Proportional to 141,693.64, 212,777.37 and 88,509.44

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Solution

The fourth proportional to 141,693.64, 212,777.37 and 88,509.44 is: 132,912.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,693.64 : 212,777.37 = 88,509.44 : x
  2. Step 2: Convert to fraction form
    141,693.64/212,777.37 = 88,509.44/x
  3. Step 3: Cross multiply
    141,693.64x = 212,777.37 × 88,509.44
  4. Step 4: Simplify right side
    141,693.64x = 18,832,806,395.32
  5. Step 5: Solve for x
    x = 18,832,806,395.32/141,693.64
  6. Step 6: Final answer
    x = 132,912.15

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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.