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Finding the Fourth Proportional to 106,754.56, 147,223.36 and 64,239.28

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Solution

The fourth proportional to 106,754.56, 147,223.36 and 64,239.28 is: 88,591.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,754.56 : 147,223.36 = 64,239.28 : x
  2. Step 2: Convert to fraction form
    106,754.56/147,223.36 = 64,239.28/x
  3. Step 3: Cross multiply
    106,754.56x = 147,223.36 × 64,239.28
  4. Step 4: Simplify right side
    106,754.56x = 9,457,522,645.58
  5. Step 5: Solve for x
    x = 9,457,522,645.58/106,754.56
  6. Step 6: Final answer
    x = 88,591.28

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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.