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Finding the Fourth Proportional to 264,031.20, 395,888.64 and 84,038.87

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Solution

The fourth proportional to 264,031.20, 395,888.64 and 84,038.87 is: 126,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,031.20 : 395,888.64 = 84,038.87 : x
  2. Step 2: Convert to fraction form
    264,031.20/395,888.64 = 84,038.87/x
  3. Step 3: Cross multiply
    264,031.20x = 395,888.64 × 84,038.87
  4. Step 4: Simplify right side
    264,031.20x = 33,270,034,626.01
  5. Step 5: Solve for x
    x = 33,270,034,626.01/264,031.20
  6. Step 6: Final answer
    x = 126,007.97

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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.