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Finding the Fourth Proportional to 65,473.12, 90,353.52 and 37,179.44

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Solution

The fourth proportional to 65,473.12, 90,353.52 and 37,179.44 is: 51,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,473.12 : 90,353.52 = 37,179.44 : x
  2. Step 2: Convert to fraction form
    65,473.12/90,353.52 = 37,179.44/x
  3. Step 3: Cross multiply
    65,473.12x = 90,353.52 × 37,179.44
  4. Step 4: Simplify right side
    65,473.12x = 3,359,293,275.63
  5. Step 5: Solve for x
    x = 3,359,293,275.63/65,473.12
  6. Step 6: Final answer
    x = 51,307.98

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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.