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Finding the Fourth Proportional to 98,243.72, 135,592.74 and 57,967.46

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Solution

The fourth proportional to 98,243.72, 135,592.74 and 57,967.46 is: 80,004.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,243.72 : 135,592.74 = 57,967.46 : x
  2. Step 2: Convert to fraction form
    98,243.72/135,592.74 = 57,967.46/x
  3. Step 3: Cross multiply
    98,243.72x = 135,592.74 × 57,967.46
  4. Step 4: Simplify right side
    98,243.72x = 7,859,966,732.24
  5. Step 5: Solve for x
    x = 7,859,966,732.24/98,243.72
  6. Step 6: Final answer
    x = 80,004.78

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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.