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Finding the Fourth Proportional to 86,967.97, 120,018.77 and 50,667.01

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Solution

The fourth proportional to 86,967.97, 120,018.77 and 50,667.01 is: 69,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,967.97 : 120,018.77 = 50,667.01 : x
  2. Step 2: Convert to fraction form
    86,967.97/120,018.77 = 50,667.01/x
  3. Step 3: Cross multiply
    86,967.97x = 120,018.77 × 50,667.01
  4. Step 4: Simplify right side
    86,967.97x = 6,080,992,219.78
  5. Step 5: Solve for x
    x = 6,080,992,219.78/86,967.97
  6. Step 6: Final answer
    x = 69,922.20

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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.