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Finding the Fourth Proportional to 70,149.51, 105,224.40 and 35,081.10

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Solution

The fourth proportional to 70,149.51, 105,224.40 and 35,081.10 is: 52,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,149.51 : 105,224.40 = 35,081.10 : x
  2. Step 2: Convert to fraction form
    70,149.51/105,224.40 = 35,081.10/x
  3. Step 3: Cross multiply
    70,149.51x = 105,224.40 × 35,081.10
  4. Step 4: Simplify right side
    70,149.51x = 3,691,387,698.84
  5. Step 5: Solve for x
    x = 3,691,387,698.84/70,149.51
  6. Step 6: Final answer
    x = 52,621.72

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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.