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Finding the Fourth Proportional to 98,943.88, 148,448.63 and 65,794.44

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Solution

The fourth proportional to 98,943.88, 148,448.63 and 65,794.44 is: 98,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,943.88 : 148,448.63 = 65,794.44 : x
  2. Step 2: Convert to fraction form
    98,943.88/148,448.63 = 65,794.44/x
  3. Step 3: Cross multiply
    98,943.88x = 148,448.63 × 65,794.44
  4. Step 4: Simplify right side
    98,943.88x = 9,767,094,479.62
  5. Step 5: Solve for x
    x = 9,767,094,479.62/98,943.88
  6. Step 6: Final answer
    x = 98,713.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.