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Finding the Fourth Proportional to 98,270.57, 135,573.99 and 61,960.07

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Solution

The fourth proportional to 98,270.57, 135,573.99 and 61,960.07 is: 85,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,270.57 : 135,573.99 = 61,960.07 : x
  2. Step 2: Convert to fraction form
    98,270.57/135,573.99 = 61,960.07/x
  3. Step 3: Cross multiply
    98,270.57x = 135,573.99 × 61,960.07
  4. Step 4: Simplify right side
    98,270.57x = 8,400,173,232.71
  5. Step 5: Solve for x
    x = 8,400,173,232.71/98,270.57
  6. Step 6: Final answer
    x = 85,480.05

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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.