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Finding the Fourth Proportional to 117,774.33, 162,513.85 and 79,616.88

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Solution

The fourth proportional to 117,774.33, 162,513.85 and 79,616.88 is: 109,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,774.33 : 162,513.85 = 79,616.88 : x
  2. Step 2: Convert to fraction form
    117,774.33/162,513.85 = 79,616.88/x
  3. Step 3: Cross multiply
    117,774.33x = 162,513.85 × 79,616.88
  4. Step 4: Simplify right side
    117,774.33x = 12,938,845,644.03
  5. Step 5: Solve for x
    x = 12,938,845,644.03/117,774.33
  6. Step 6: Final answer
    x = 109,861.34

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1.5x scale

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.