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Finding the Fourth Proportional to 79,989.32, 110,386.16 and 46,014.68

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Solution

The fourth proportional to 79,989.32, 110,386.16 and 46,014.68 is: 63,500.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,989.32 : 110,386.16 = 46,014.68 : x
  2. Step 2: Convert to fraction form
    79,989.32/110,386.16 = 46,014.68/x
  3. Step 3: Cross multiply
    79,989.32x = 110,386.16 × 46,014.68
  4. Step 4: Simplify right side
    79,989.32x = 5,079,383,828.83
  5. Step 5: Solve for x
    x = 5,079,383,828.83/79,989.32
  6. Step 6: Final answer
    x = 63,500.78

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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.