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Finding the Fourth Proportional to 79,373.80, 109,536.98 and 43,563.16

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Solution

The fourth proportional to 79,373.80, 109,536.98 and 43,563.16 is: 60,117.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,373.80 : 109,536.98 = 43,563.16 : x
  2. Step 2: Convert to fraction form
    79,373.80/109,536.98 = 43,563.16/x
  3. Step 3: Cross multiply
    79,373.80x = 109,536.98 × 43,563.16
  4. Step 4: Simplify right side
    79,373.80x = 4,771,776,985.66
  5. Step 5: Solve for x
    x = 4,771,776,985.66/79,373.80
  6. Step 6: Final answer
    x = 60,117.78

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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.