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Finding the Fourth Proportional to 170,079.12, 254,932.11 and 70,187.76

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Solution

The fourth proportional to 170,079.12, 254,932.11 and 70,187.76 is: 105,204.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,079.12 : 254,932.11 = 70,187.76 : x
  2. Step 2: Convert to fraction form
    170,079.12/254,932.11 = 70,187.76/x
  3. Step 3: Cross multiply
    170,079.12x = 254,932.11 × 70,187.76
  4. Step 4: Simplify right side
    170,079.12x = 17,893,113,752.97
  5. Step 5: Solve for x
    x = 17,893,113,752.97/170,079.12
  6. Step 6: Final answer
    x = 105,204.65

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1.5x scale

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.