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Finding the Fourth Proportional to 168,729.78, 232,893.28 and 105,029.76

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Solution

The fourth proportional to 168,729.78, 232,893.28 and 105,029.76 is: 144,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,729.78 : 232,893.28 = 105,029.76 : x
  2. Step 2: Convert to fraction form
    168,729.78/232,893.28 = 105,029.76/x
  3. Step 3: Cross multiply
    168,729.78x = 232,893.28 × 105,029.76
  4. Step 4: Simplify right side
    168,729.78x = 24,460,725,304.01
  5. Step 5: Solve for x
    x = 24,460,725,304.01/168,729.78
  6. Step 6: Final answer
    x = 144,969.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.