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Finding the Fourth Proportional to 69,216.55, 103,679.02 and 56,094.55

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Solution

The fourth proportional to 69,216.55, 103,679.02 and 56,094.55 is: 84,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,216.55 : 103,679.02 = 56,094.55 : x
  2. Step 2: Convert to fraction form
    69,216.55/103,679.02 = 56,094.55/x
  3. Step 3: Cross multiply
    69,216.55x = 103,679.02 × 56,094.55
  4. Step 4: Simplify right side
    69,216.55x = 5,815,827,971.34
  5. Step 5: Solve for x
    x = 5,815,827,971.34/69,216.55
  6. Step 6: Final answer
    x = 84,023.66

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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.