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Finding the Fourth Proportional to 74,170.01, 111,255 and 49,258.71

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Solution

The fourth proportional to 74,170.01, 111,255 and 49,258.71 is: 73,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.01 : 111,255 = 49,258.71 : x
  2. Step 2: Convert to fraction form
    74,170.01/111,255 = 49,258.71/x
  3. Step 3: Cross multiply
    74,170.01x = 111,255 × 49,258.71
  4. Step 4: Simplify right side
    74,170.01x = 5,480,277,781.05
  5. Step 5: Solve for x
    x = 5,480,277,781.05/74,170.01
  6. Step 6: Final answer
    x = 73,888.06

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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.