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Finding the Fourth Proportional to 117,486.72, 176,257.44 and 38,600.64

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Solution

The fourth proportional to 117,486.72, 176,257.44 and 38,600.64 is: 57,909.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,486.72 : 176,257.44 = 38,600.64 : x
  2. Step 2: Convert to fraction form
    117,486.72/176,257.44 = 38,600.64/x
  3. Step 3: Cross multiply
    117,486.72x = 176,257.44 × 38,600.64
  4. Step 4: Simplify right side
    117,486.72x = 6,803,649,988.76
  5. Step 5: Solve for x
    x = 6,803,649,988.76/117,486.72
  6. Step 6: Final answer
    x = 57,909.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.