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Finding the Fourth Proportional to 79,807.21, 110,134.70 and 43,998.51

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Solution

The fourth proportional to 79,807.21, 110,134.70 and 43,998.51 is: 60,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,807.21 : 110,134.70 = 43,998.51 : x
  2. Step 2: Convert to fraction form
    79,807.21/110,134.70 = 43,998.51/x
  3. Step 3: Cross multiply
    79,807.21x = 110,134.70 × 43,998.51
  4. Step 4: Simplify right side
    79,807.21x = 4,845,762,699.30
  5. Step 5: Solve for x
    x = 4,845,762,699.30/79,807.21
  6. Step 6: Final answer
    x = 60,718.36

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1.5x scale

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.