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Finding the Fourth Proportional to 70,530.85, 105,813.78 and 35,008.84

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Solution

The fourth proportional to 70,530.85, 105,813.78 and 35,008.84 is: 52,521.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.85 : 105,813.78 = 35,008.84 : x
  2. Step 2: Convert to fraction form
    70,530.85/105,813.78 = 35,008.84/x
  3. Step 3: Cross multiply
    70,530.85x = 105,813.78 × 35,008.84
  4. Step 4: Simplify right side
    70,530.85x = 3,704,417,694.80
  5. Step 5: Solve for x
    x = 3,704,417,694.80/70,530.85
  6. Step 6: Final answer
    x = 52,521.95

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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.