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Finding the Fourth Proportional to 261,682.80, 392,254.92 and 104,022.96

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Solution

The fourth proportional to 261,682.80, 392,254.92 and 104,022.96 is: 155,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,682.80 : 392,254.92 = 104,022.96 : x
  2. Step 2: Convert to fraction form
    261,682.80/392,254.92 = 104,022.96/x
  3. Step 3: Cross multiply
    261,682.80x = 392,254.92 × 104,022.96
  4. Step 4: Simplify right side
    261,682.80x = 40,803,517,852.96
  5. Step 5: Solve for x
    x = 40,803,517,852.96/261,682.80
  6. Step 6: Final answer
    x = 155,927.40

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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.