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Finding the Fourth Proportional to 56,765.55, 84,984.30 and 55,125.30

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Solution

The fourth proportional to 56,765.55, 84,984.30 and 55,125.30 is: 82,528.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,765.55 : 84,984.30 = 55,125.30 : x
  2. Step 2: Convert to fraction form
    56,765.55/84,984.30 = 55,125.30/x
  3. Step 3: Cross multiply
    56,765.55x = 84,984.30 × 55,125.30
  4. Step 4: Simplify right side
    56,765.55x = 4,684,785,032.79
  5. Step 5: Solve for x
    x = 4,684,785,032.79/56,765.55
  6. Step 6: Final answer
    x = 82,528.66

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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.