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Finding the Fourth Proportional to 135,359.22, 186,714.00 and 86,944.85

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Solution

The fourth proportional to 135,359.22, 186,714.00 and 86,944.85 is: 119,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,359.22 : 186,714.00 = 86,944.85 : x
  2. Step 2: Convert to fraction form
    135,359.22/186,714.00 = 86,944.85/x
  3. Step 3: Cross multiply
    135,359.22x = 186,714.00 × 86,944.85
  4. Step 4: Simplify right side
    135,359.22x = 16,233,820,571.02
  5. Step 5: Solve for x
    x = 16,233,820,571.02/135,359.22
  6. Step 6: Final answer
    x = 119,931.40

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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.