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Finding the Fourth Proportional to 109,225.16, 150,694.58 and 63,871.01

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Solution

The fourth proportional to 109,225.16, 150,694.58 and 63,871.01 is: 88,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,225.16 : 150,694.58 = 63,871.01 : x
  2. Step 2: Convert to fraction form
    109,225.16/150,694.58 = 63,871.01/x
  3. Step 3: Cross multiply
    109,225.16x = 150,694.58 × 63,871.01
  4. Step 4: Simplify right side
    109,225.16x = 9,625,014,409.87
  5. Step 5: Solve for x
    x = 9,625,014,409.87/109,225.16
  6. Step 6: Final answer
    x = 88,120.86

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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.