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Finding the Fourth Proportional to 98,191.71, 135,504.54 and 53,479.71

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Solution

The fourth proportional to 98,191.71, 135,504.54 and 53,479.71 is: 73,801.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,191.71 : 135,504.54 = 53,479.71 : x
  2. Step 2: Convert to fraction form
    98,191.71/135,504.54 = 53,479.71/x
  3. Step 3: Cross multiply
    98,191.71x = 135,504.54 × 53,479.71
  4. Step 4: Simplify right side
    98,191.71x = 7,246,743,502.88
  5. Step 5: Solve for x
    x = 7,246,743,502.88/98,191.71
  6. Step 6: Final answer
    x = 73,801.99

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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.