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Finding the Fourth Proportional to 150,659.01, 207,857.95 and 86,081.92

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Solution

The fourth proportional to 150,659.01, 207,857.95 and 86,081.92 is: 118,763.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,659.01 : 207,857.95 = 86,081.92 : x
  2. Step 2: Convert to fraction form
    150,659.01/207,857.95 = 86,081.92/x
  3. Step 3: Cross multiply
    150,659.01x = 207,857.95 × 86,081.92
  4. Step 4: Simplify right side
    150,659.01x = 17,892,810,688.41
  5. Step 5: Solve for x
    x = 17,892,810,688.41/150,659.01
  6. Step 6: Final answer
    x = 118,763.63

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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.