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Finding the Fourth Proportional to 70,611.94, 105,961.65 and 63,351.10

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Solution

The fourth proportional to 70,611.94, 105,961.65 and 63,351.10 is: 95,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,611.94 : 105,961.65 = 63,351.10 : x
  2. Step 2: Convert to fraction form
    70,611.94/105,961.65 = 63,351.10/x
  3. Step 3: Cross multiply
    70,611.94x = 105,961.65 × 63,351.10
  4. Step 4: Simplify right side
    70,611.94x = 6,712,787,085.32
  5. Step 5: Solve for x
    x = 6,712,787,085.32/70,611.94
  6. Step 6: Final answer
    x = 95,065.89

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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.