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Finding the Fourth Proportional to 79,178.34, 109,265.82 and 43,368.24

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Solution

The fourth proportional to 79,178.34, 109,265.82 and 43,368.24 is: 59,848.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178.34 : 109,265.82 = 43,368.24 : x
  2. Step 2: Convert to fraction form
    79,178.34/109,265.82 = 43,368.24/x
  3. Step 3: Cross multiply
    79,178.34x = 109,265.82 × 43,368.24
  4. Step 4: Simplify right side
    79,178.34x = 4,738,666,305.56
  5. Step 5: Solve for x
    x = 4,738,666,305.56/79,178.34
  6. Step 6: Final answer
    x = 59,848.01

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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.