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Finding the Fourth Proportional to 69,222.55, 103,688.02 and 56,100.55

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Solution

The fourth proportional to 69,222.55, 103,688.02 and 56,100.55 is: 84,032.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,222.55 : 103,688.02 = 56,100.55 : x
  2. Step 2: Convert to fraction form
    69,222.55/103,688.02 = 56,100.55/x
  3. Step 3: Cross multiply
    69,222.55x = 103,688.02 × 56,100.55
  4. Step 4: Simplify right side
    69,222.55x = 5,816,954,950.41
  5. Step 5: Solve for x
    x = 5,816,954,950.41/69,222.55
  6. Step 6: Final answer
    x = 84,032.66

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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.