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Finding the Fourth Proportional to 85,857.92, 118,483.86 and 48,132.17

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Solution

The fourth proportional to 85,857.92, 118,483.86 and 48,132.17 is: 66,422.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,857.92 : 118,483.86 = 48,132.17 : x
  2. Step 2: Convert to fraction form
    85,857.92/118,483.86 = 48,132.17/x
  3. Step 3: Cross multiply
    85,857.92x = 118,483.86 × 48,132.17
  4. Step 4: Simplify right side
    85,857.92x = 5,702,885,291.78
  5. Step 5: Solve for x
    x = 5,702,885,291.78/85,857.92
  6. Step 6: Final answer
    x = 66,422.36

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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.