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Finding the Fourth Proportional to 98,578.91, 148,177.05 and 65,060.34

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Solution

The fourth proportional to 98,578.91, 148,177.05 and 65,060.34 is: 97,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,578.91 : 148,177.05 = 65,060.34 : x
  2. Step 2: Convert to fraction form
    98,578.91/148,177.05 = 65,060.34/x
  3. Step 3: Cross multiply
    98,578.91x = 148,177.05 × 65,060.34
  4. Step 4: Simplify right side
    98,578.91x = 9,640,449,808.86
  5. Step 5: Solve for x
    x = 9,640,449,808.86/98,578.91
  6. Step 6: Final answer
    x = 97,794.25

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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.