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Finding the Fourth Proportional to 98,794.31, 136,335.76 and 53,473.06

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Solution

The fourth proportional to 98,794.31, 136,335.76 and 53,473.06 is: 73,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,794.31 : 136,335.76 = 53,473.06 : x
  2. Step 2: Convert to fraction form
    98,794.31/136,335.76 = 53,473.06/x
  3. Step 3: Cross multiply
    98,794.31x = 136,335.76 × 53,473.06
  4. Step 4: Simplify right side
    98,794.31x = 7,290,290,311.36
  5. Step 5: Solve for x
    x = 7,290,290,311.36/98,794.31
  6. Step 6: Final answer
    x = 73,792.61

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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.