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Finding the Fourth Proportional to 424,044.78, 635,911.65 and 124,448.46

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Solution

The fourth proportional to 424,044.78, 635,911.65 and 124,448.46 is: 186,627.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,044.78 : 635,911.65 = 124,448.46 : x
  2. Step 2: Convert to fraction form
    424,044.78/635,911.65 = 124,448.46/x
  3. Step 3: Cross multiply
    424,044.78x = 635,911.65 × 124,448.46
  4. Step 4: Simplify right side
    424,044.78x = 79,138,225,538.56
  5. Step 5: Solve for x
    x = 79,138,225,538.56/424,044.78
  6. Step 6: Final answer
    x = 186,627.05

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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.