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Finding the Fourth Proportional to 98,192.28, 135,505.30 and 53,480.28

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Solution

The fourth proportional to 98,192.28, 135,505.30 and 53,480.28 is: 73,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,192.28 : 135,505.30 = 53,480.28 : x
  2. Step 2: Convert to fraction form
    98,192.28/135,505.30 = 53,480.28/x
  3. Step 3: Cross multiply
    98,192.28x = 135,505.30 × 53,480.28
  4. Step 4: Simplify right side
    98,192.28x = 7,246,861,385.48
  5. Step 5: Solve for x
    x = 7,246,861,385.48/98,192.28
  6. Step 6: Final answer
    x = 73,802.76

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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.