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Finding the Fourth Proportional to 261,381.90, 392,364.45 and 244,250.40

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Solution

The fourth proportional to 261,381.90, 392,364.45 and 244,250.40 is: 366,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,381.90 : 392,364.45 = 244,250.40 : x
  2. Step 2: Convert to fraction form
    261,381.90/392,364.45 = 244,250.40/x
  3. Step 3: Cross multiply
    261,381.90x = 392,364.45 × 244,250.40
  4. Step 4: Simplify right side
    261,381.90x = 95,835,173,858.28
  5. Step 5: Solve for x
    x = 95,835,173,858.28/261,381.90
  6. Step 6: Final answer
    x = 366,648.09

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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.