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Finding the Fourth Proportional to 79,992.84, 110,390.96 and 46,018.20

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Solution

The fourth proportional to 79,992.84, 110,390.96 and 46,018.20 is: 63,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,992.84 : 110,390.96 = 46,018.20 : x
  2. Step 2: Convert to fraction form
    79,992.84/110,390.96 = 46,018.20/x
  3. Step 3: Cross multiply
    79,992.84x = 110,390.96 × 46,018.20
  4. Step 4: Simplify right side
    79,992.84x = 5,079,993,275.47
  5. Step 5: Solve for x
    x = 5,079,993,275.47/79,992.84
  6. Step 6: Final answer
    x = 63,505.60

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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.