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Finding the Fourth Proportional to 98,275.32, 135,623.70 and 53,563.32

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Solution

The fourth proportional to 98,275.32, 135,623.70 and 53,563.32 is: 73,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,275.32 : 135,623.70 = 53,563.32 : x
  2. Step 2: Convert to fraction form
    98,275.32/135,623.70 = 53,563.32/x
  3. Step 3: Cross multiply
    98,275.32x = 135,623.70 × 53,563.32
  4. Step 4: Simplify right side
    98,275.32x = 7,264,455,642.68
  5. Step 5: Solve for x
    x = 7,264,455,642.68/98,275.32
  6. Step 6: Final answer
    x = 73,919.43

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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.