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Finding the Fourth Proportional to 79,372, 109,533.36 and 44,044

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Solution

The fourth proportional to 79,372, 109,533.36 and 44,044 is: 60,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,372 : 109,533.36 = 44,044 : x
  2. Step 2: Convert to fraction form
    79,372/109,533.36 = 44,044/x
  3. Step 3: Cross multiply
    79,372x = 109,533.36 × 44,044
  4. Step 4: Simplify right side
    79,372x = 4,824,287,307.84
  5. Step 5: Solve for x
    x = 4,824,287,307.84/79,372
  6. Step 6: Final answer
    x = 60,780.72

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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.