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Finding the Fourth Proportional to 159,818.10, 239,561.10 and 65,007.60

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Solution

The fourth proportional to 159,818.10, 239,561.10 and 65,007.60 is: 97,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,818.10 : 239,561.10 = 65,007.60 : x
  2. Step 2: Convert to fraction form
    159,818.10/239,561.10 = 65,007.60/x
  3. Step 3: Cross multiply
    159,818.10x = 239,561.10 × 65,007.60
  4. Step 4: Simplify right side
    159,818.10x = 15,573,292,164.36
  5. Step 5: Solve for x
    x = 15,573,292,164.36/159,818.10
  6. Step 6: Final answer
    x = 97,443.86

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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.