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Finding the Fourth Proportional to 98,496.56, 135,919.70 and 58,214.07

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Solution

The fourth proportional to 98,496.56, 135,919.70 and 58,214.07 is: 80,332.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,496.56 : 135,919.70 = 58,214.07 : x
  2. Step 2: Convert to fraction form
    98,496.56/135,919.70 = 58,214.07/x
  3. Step 3: Cross multiply
    98,496.56x = 135,919.70 × 58,214.07
  4. Step 4: Simplify right side
    98,496.56x = 7,912,438,311.41
  5. Step 5: Solve for x
    x = 7,912,438,311.41/98,496.56
  6. Step 6: Final answer
    x = 80,332.13

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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.