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Finding the Fourth Proportional to 150,792.78, 208,119.63 and 87,167.46

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Solution

The fourth proportional to 150,792.78, 208,119.63 and 87,167.46 is: 120,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,792.78 : 208,119.63 = 87,167.46 : x
  2. Step 2: Convert to fraction form
    150,792.78/208,119.63 = 87,167.46/x
  3. Step 3: Cross multiply
    150,792.78x = 208,119.63 × 87,167.46
  4. Step 4: Simplify right side
    150,792.78x = 18,141,259,523.24
  5. Step 5: Solve for x
    x = 18,141,259,523.24/150,792.78
  6. Step 6: Final answer
    x = 120,305.89

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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.