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Finding the Fourth Proportional to 106,674.88, 147,190.88 and 64,236.16

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Solution

The fourth proportional to 106,674.88, 147,190.88 and 64,236.16 is: 88,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,674.88 : 147,190.88 = 64,236.16 : x
  2. Step 2: Convert to fraction form
    106,674.88/147,190.88 = 64,236.16/x
  3. Step 3: Cross multiply
    106,674.88x = 147,190.88 × 64,236.16
  4. Step 4: Simplify right side
    106,674.88x = 9,454,976,918.22
  5. Step 5: Solve for x
    x = 9,454,976,918.22/106,674.88
  6. Step 6: Final answer
    x = 88,633.58

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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.