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Finding the Fourth Proportional to 158,230.22, 218,357.93 and 86,614.77

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Solution

The fourth proportional to 158,230.22, 218,357.93 and 86,614.77 is: 119,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,230.22 : 218,357.93 = 86,614.77 : x
  2. Step 2: Convert to fraction form
    158,230.22/218,357.93 = 86,614.77/x
  3. Step 3: Cross multiply
    158,230.22x = 218,357.93 × 86,614.77
  4. Step 4: Simplify right side
    158,230.22x = 18,913,022,101.16
  5. Step 5: Solve for x
    x = 18,913,022,101.16/158,230.22
  6. Step 6: Final answer
    x = 119,528.51

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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.