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Finding the Fourth Proportional to 159,009.40, 238,514.10 and 156,676.60

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Solution

The fourth proportional to 159,009.40, 238,514.10 and 156,676.60 is: 235,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,009.40 : 238,514.10 = 156,676.60 : x
  2. Step 2: Convert to fraction form
    159,009.40/238,514.10 = 156,676.60/x
  3. Step 3: Cross multiply
    159,009.40x = 238,514.10 × 156,676.60
  4. Step 4: Simplify right side
    159,009.40x = 37,369,578,240.06
  5. Step 5: Solve for x
    x = 37,369,578,240.06/159,009.40
  6. Step 6: Final answer
    x = 235,014.90

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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.