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Finding the Fourth Proportional to 86,622.88, 119,536.20 and 54,374.84

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Solution

The fourth proportional to 86,622.88, 119,536.20 and 54,374.84 is: 75,035.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,622.88 : 119,536.20 = 54,374.84 : x
  2. Step 2: Convert to fraction form
    86,622.88/119,536.20 = 54,374.84/x
  3. Step 3: Cross multiply
    86,622.88x = 119,536.20 × 54,374.84
  4. Step 4: Simplify right side
    86,622.88x = 6,499,761,749.21
  5. Step 5: Solve for x
    x = 6,499,761,749.21/86,622.88
  6. Step 6: Final answer
    x = 75,035.16

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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.