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Finding the Fourth Proportional to 98,785.48, 136,324.02 and 54,073.48

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Solution

The fourth proportional to 98,785.48, 136,324.02 and 54,073.48 is: 74,621.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,785.48 : 136,324.02 = 54,073.48 : x
  2. Step 2: Convert to fraction form
    98,785.48/136,324.02 = 54,073.48/x
  3. Step 3: Cross multiply
    98,785.48x = 136,324.02 × 54,073.48
  4. Step 4: Simplify right side
    98,785.48x = 7,371,514,168.99
  5. Step 5: Solve for x
    x = 7,371,514,168.99/98,785.48
  6. Step 6: Final answer
    x = 74,621.43

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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.