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Finding the Fourth Proportional to 110,079.54, 151,912.24 and 61,685.08

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Solution

The fourth proportional to 110,079.54, 151,912.24 and 61,685.08 is: 85,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,079.54 : 151,912.24 = 61,685.08 : x
  2. Step 2: Convert to fraction form
    110,079.54/151,912.24 = 61,685.08/x
  3. Step 3: Cross multiply
    110,079.54x = 151,912.24 × 61,685.08
  4. Step 4: Simplify right side
    110,079.54x = 9,370,718,677.38
  5. Step 5: Solve for x
    x = 9,370,718,677.38/110,079.54
  6. Step 6: Final answer
    x = 85,126.80

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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.