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Finding the Fourth Proportional to 117,748.68, 162,492.39 and 64,033.57

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Solution

The fourth proportional to 117,748.68, 162,492.39 and 64,033.57 is: 88,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,748.68 : 162,492.39 = 64,033.57 : x
  2. Step 2: Convert to fraction form
    117,748.68/162,492.39 = 64,033.57/x
  3. Step 3: Cross multiply
    117,748.68x = 162,492.39 × 64,033.57
  4. Step 4: Simplify right side
    117,748.68x = 10,404,967,265.80
  5. Step 5: Solve for x
    x = 10,404,967,265.80/117,748.68
  6. Step 6: Final answer
    x = 88,365.89

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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.