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Finding the Fourth Proportional to 79,369.78, 109,533.72 and 47,532.58

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Solution

The fourth proportional to 79,369.78, 109,533.72 and 47,532.58 is: 65,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,369.78 : 109,533.72 = 47,532.58 : x
  2. Step 2: Convert to fraction form
    79,369.78/109,533.72 = 47,532.58/x
  3. Step 3: Cross multiply
    79,369.78x = 109,533.72 × 47,532.58
  4. Step 4: Simplify right side
    79,369.78x = 5,206,420,308.60
  5. Step 5: Solve for x
    x = 5,206,420,308.60/79,369.78
  6. Step 6: Final answer
    x = 65,597.01

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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.