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Finding the Fourth Proportional to 107,866.40, 161,799.60 and 60,627.20

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Solution

The fourth proportional to 107,866.40, 161,799.60 and 60,627.20 is: 90,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,866.40 : 161,799.60 = 60,627.20 : x
  2. Step 2: Convert to fraction form
    107,866.40/161,799.60 = 60,627.20/x
  3. Step 3: Cross multiply
    107,866.40x = 161,799.60 × 60,627.20
  4. Step 4: Simplify right side
    107,866.40x = 9,809,456,709.12
  5. Step 5: Solve for x
    x = 9,809,456,709.12/107,866.40
  6. Step 6: Final answer
    x = 90,940.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.