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Finding the Fourth Proportional to 170,254.80, 254,935.80 and 120,062.88

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Solution

The fourth proportional to 170,254.80, 254,935.80 and 120,062.88 is: 179,779.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,254.80 : 254,935.80 = 120,062.88 : x
  2. Step 2: Convert to fraction form
    170,254.80/254,935.80 = 120,062.88/x
  3. Step 3: Cross multiply
    170,254.80x = 254,935.80 × 120,062.88
  4. Step 4: Simplify right side
    170,254.80x = 30,608,326,363.10
  5. Step 5: Solve for x
    x = 30,608,326,363.10/170,254.80
  6. Step 6: Final answer
    x = 179,779.52

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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.