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Finding the Fourth Proportional to 85,991.54, 118,661.82 and 48,258.50

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Solution

The fourth proportional to 85,991.54, 118,661.82 and 48,258.50 is: 66,593.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.54 : 118,661.82 = 48,258.50 : x
  2. Step 2: Convert to fraction form
    85,991.54/118,661.82 = 48,258.50/x
  3. Step 3: Cross multiply
    85,991.54x = 118,661.82 × 48,258.50
  4. Step 4: Simplify right side
    85,991.54x = 5,726,441,440.47
  5. Step 5: Solve for x
    x = 5,726,441,440.47/85,991.54
  6. Step 6: Final answer
    x = 66,593.08

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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.