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Finding the Fourth Proportional to 64,499.40, 96,530.40 and 56,626.20

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Solution

The fourth proportional to 64,499.40, 96,530.40 and 56,626.20 is: 84,747.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,499.40 : 96,530.40 = 56,626.20 : x
  2. Step 2: Convert to fraction form
    64,499.40/96,530.40 = 56,626.20/x
  3. Step 3: Cross multiply
    64,499.40x = 96,530.40 × 56,626.20
  4. Step 4: Simplify right side
    64,499.40x = 5,466,149,736.48
  5. Step 5: Solve for x
    x = 5,466,149,736.48/64,499.40
  6. Step 6: Final answer
    x = 84,747.30

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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.