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Finding the Fourth Proportional to 105,375.64, 158,063.60 and 43,046.16

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Solution

The fourth proportional to 105,375.64, 158,063.60 and 43,046.16 is: 64,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,375.64 : 158,063.60 = 43,046.16 : x
  2. Step 2: Convert to fraction form
    105,375.64/158,063.60 = 43,046.16/x
  3. Step 3: Cross multiply
    105,375.64x = 158,063.60 × 43,046.16
  4. Step 4: Simplify right side
    105,375.64x = 6,804,031,015.78
  5. Step 5: Solve for x
    x = 6,804,031,015.78/105,375.64
  6. Step 6: Final answer
    x = 64,569.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.