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Finding the Fourth Proportional to 85,676.54, 118,219.52 and 53,822.88

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Solution

The fourth proportional to 85,676.54, 118,219.52 and 53,822.88 is: 74,266.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,676.54 : 118,219.52 = 53,822.88 : x
  2. Step 2: Convert to fraction form
    85,676.54/118,219.52 = 53,822.88/x
  3. Step 3: Cross multiply
    85,676.54x = 118,219.52 × 53,822.88
  4. Step 4: Simplify right side
    85,676.54x = 6,362,915,038.62
  5. Step 5: Solve for x
    x = 6,362,915,038.62/85,676.54
  6. Step 6: Final answer
    x = 74,266.71

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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.