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Finding the Fourth Proportional to 79,051.63, 109,119.05 and 48,860.11

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Solution

The fourth proportional to 79,051.63, 109,119.05 and 48,860.11 is: 67,444.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,051.63 : 109,119.05 = 48,860.11 : x
  2. Step 2: Convert to fraction form
    79,051.63/109,119.05 = 48,860.11/x
  3. Step 3: Cross multiply
    79,051.63x = 109,119.05 × 48,860.11
  4. Step 4: Simplify right side
    79,051.63x = 5,331,568,541.79
  5. Step 5: Solve for x
    x = 5,331,568,541.79/79,051.63
  6. Step 6: Final answer
    x = 67,444.13

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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.