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Finding the Fourth Proportional to 98,568, 136,024.02 and 53,856

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Solution

The fourth proportional to 98,568, 136,024.02 and 53,856 is: 74,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,568 : 136,024.02 = 53,856 : x
  2. Step 2: Convert to fraction form
    98,568/136,024.02 = 53,856/x
  3. Step 3: Cross multiply
    98,568x = 136,024.02 × 53,856
  4. Step 4: Simplify right side
    98,568x = 7,325,709,621.12
  5. Step 5: Solve for x
    x = 7,325,709,621.12/98,568
  6. Step 6: Final answer
    x = 74,321.38

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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.