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Finding the Fourth Proportional to 134,189.94, 185,199.60 and 86,581.80

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Solution

The fourth proportional to 134,189.94, 185,199.60 and 86,581.80 is: 119,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,189.94 : 185,199.60 = 86,581.80 : x
  2. Step 2: Convert to fraction form
    134,189.94/185,199.60 = 86,581.80/x
  3. Step 3: Cross multiply
    134,189.94x = 185,199.60 × 86,581.80
  4. Step 4: Simplify right side
    134,189.94x = 16,034,914,727.28
  5. Step 5: Solve for x
    x = 16,034,914,727.28/134,189.94
  6. Step 6: Final answer
    x = 119,494.16

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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.