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Finding the Fourth Proportional to 70,250.75, 105,268.40 and 47,732.75

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Solution

The fourth proportional to 70,250.75, 105,268.40 and 47,732.75 is: 71,525.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,250.75 : 105,268.40 = 47,732.75 : x
  2. Step 2: Convert to fraction form
    70,250.75/105,268.40 = 47,732.75/x
  3. Step 3: Cross multiply
    70,250.75x = 105,268.40 × 47,732.75
  4. Step 4: Simplify right side
    70,250.75x = 5,024,750,423.61
  5. Step 5: Solve for x
    x = 5,024,750,423.61/70,250.75
  6. Step 6: Final answer
    x = 71,525.93

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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.