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Finding the Fourth Proportional to 68,706.29, 103,527.50 and 56,499.77

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Solution

The fourth proportional to 68,706.29, 103,527.50 and 56,499.77 is: 85,134.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.29 : 103,527.50 = 56,499.77 : x
  2. Step 2: Convert to fraction form
    68,706.29/103,527.50 = 56,499.77/x
  3. Step 3: Cross multiply
    68,706.29x = 103,527.50 × 56,499.77
  4. Step 4: Simplify right side
    68,706.29x = 5,849,279,914.99
  5. Step 5: Solve for x
    x = 5,849,279,914.99/68,706.29
  6. Step 6: Final answer
    x = 85,134.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.