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Finding the Fourth Proportional to 117,445.96, 162,037.74 and 65,755.44

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Solution

The fourth proportional to 117,445.96, 162,037.74 and 65,755.44 is: 90,721.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,445.96 : 162,037.74 = 65,755.44 : x
  2. Step 2: Convert to fraction form
    117,445.96/162,037.74 = 65,755.44/x
  3. Step 3: Cross multiply
    117,445.96x = 162,037.74 × 65,755.44
  4. Step 4: Simplify right side
    117,445.96x = 10,654,862,354.21
  5. Step 5: Solve for x
    x = 10,654,862,354.21/117,445.96
  6. Step 6: Final answer
    x = 90,721.41

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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.