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Finding the Fourth Proportional to 159,031.36, 238,576.20 and 65,486.08

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Solution

The fourth proportional to 159,031.36, 238,576.20 and 65,486.08 is: 98,241.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,031.36 : 238,576.20 = 65,486.08 : x
  2. Step 2: Convert to fraction form
    159,031.36/238,576.20 = 65,486.08/x
  3. Step 3: Cross multiply
    159,031.36x = 238,576.20 × 65,486.08
  4. Step 4: Simplify right side
    159,031.36x = 15,623,420,119.30
  5. Step 5: Solve for x
    x = 15,623,420,119.30/159,031.36
  6. Step 6: Final answer
    x = 98,241.13

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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.