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Finding the Fourth Proportional to 70,375.83, 105,563.94 and 35,307.28

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Solution

The fourth proportional to 70,375.83, 105,563.94 and 35,307.28 is: 52,961.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,375.83 : 105,563.94 = 35,307.28 : x
  2. Step 2: Convert to fraction form
    70,375.83/105,563.94 = 35,307.28/x
  3. Step 3: Cross multiply
    70,375.83x = 105,563.94 × 35,307.28
  4. Step 4: Simplify right side
    70,375.83x = 3,727,175,587.48
  5. Step 5: Solve for x
    x = 3,727,175,587.48/70,375.83
  6. Step 6: Final answer
    x = 52,961.02

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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.