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Finding the Fourth Proportional to 150,648.06, 207,892.50 and 86,984.48

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Solution

The fourth proportional to 150,648.06, 207,892.50 and 86,984.48 is: 120,037.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,648.06 : 207,892.50 = 86,984.48 : x
  2. Step 2: Convert to fraction form
    150,648.06/207,892.50 = 86,984.48/x
  3. Step 3: Cross multiply
    150,648.06x = 207,892.50 × 86,984.48
  4. Step 4: Simplify right side
    150,648.06x = 18,083,421,008.40
  5. Step 5: Solve for x
    x = 18,083,421,008.40/150,648.06
  6. Step 6: Final answer
    x = 120,037.53

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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.