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Finding the Fourth Proportional to 71,618.93, 98,797.06 and 48,649.93

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Solution

The fourth proportional to 71,618.93, 98,797.06 and 48,649.93 is: 67,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,618.93 : 98,797.06 = 48,649.93 : x
  2. Step 2: Convert to fraction form
    71,618.93/98,797.06 = 48,649.93/x
  3. Step 3: Cross multiply
    71,618.93x = 98,797.06 × 48,649.93
  4. Step 4: Simplify right side
    71,618.93x = 4,806,470,053.21
  5. Step 5: Solve for x
    x = 4,806,470,053.21/71,618.93
  6. Step 6: Final answer
    x = 67,111.73

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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.