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Finding the Fourth Proportional to 85,253.48, 117,649.55 and 49,464.44

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Solution

The fourth proportional to 85,253.48, 117,649.55 and 49,464.44 is: 68,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,253.48 : 117,649.55 = 49,464.44 : x
  2. Step 2: Convert to fraction form
    85,253.48/117,649.55 = 49,464.44/x
  3. Step 3: Cross multiply
    85,253.48x = 117,649.55 × 49,464.44
  4. Step 4: Simplify right side
    85,253.48x = 5,819,468,271.43
  5. Step 5: Solve for x
    x = 5,819,468,271.43/85,253.48
  6. Step 6: Final answer
    x = 68,260.77

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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.