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Finding the Fourth Proportional to 69,212.55, 103,673.02 and 56,090.55

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Solution

The fourth proportional to 69,212.55, 103,673.02 and 56,090.55 is: 84,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,212.55 : 103,673.02 = 56,090.55 : x
  2. Step 2: Convert to fraction form
    69,212.55/103,673.02 = 56,090.55/x
  3. Step 3: Cross multiply
    69,212.55x = 103,673.02 × 56,090.55
  4. Step 4: Simplify right side
    69,212.55x = 5,815,076,711.96
  5. Step 5: Solve for x
    x = 5,815,076,711.96/69,212.55
  6. Step 6: Final answer
    x = 84,017.66

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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.