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Finding the Fourth Proportional to 170,031.86, 254,826.36 and 105,963.68

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Solution

The fourth proportional to 170,031.86, 254,826.36 and 105,963.68 is: 158,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,031.86 : 254,826.36 = 105,963.68 : x
  2. Step 2: Convert to fraction form
    170,031.86/254,826.36 = 105,963.68/x
  3. Step 3: Cross multiply
    170,031.86x = 254,826.36 × 105,963.68
  4. Step 4: Simplify right side
    170,031.86x = 27,002,338,866.60
  5. Step 5: Solve for x
    x = 27,002,338,866.60/170,031.86
  6. Step 6: Final answer
    x = 158,807.53

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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.