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Finding the Fourth Proportional to 158,889.16, 238,335.90 and 40,561.48

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Solution

The fourth proportional to 158,889.16, 238,335.90 and 40,561.48 is: 60,842.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,889.16 : 238,335.90 = 40,561.48 : x
  2. Step 2: Convert to fraction form
    158,889.16/238,335.90 = 40,561.48/x
  3. Step 3: Cross multiply
    158,889.16x = 238,335.90 × 40,561.48
  4. Step 4: Simplify right side
    158,889.16x = 9,667,256,841.13
  5. Step 5: Solve for x
    x = 9,667,256,841.13/158,889.16
  6. Step 6: Final answer
    x = 60,842.77

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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.