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Finding the Fourth Proportional to 64,499.40, 96,749.10 and 50,502.60

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Solution

The fourth proportional to 64,499.40, 96,749.10 and 50,502.60 is: 75,753.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,499.40 : 96,749.10 = 50,502.60 : x
  2. Step 2: Convert to fraction form
    64,499.40/96,749.10 = 50,502.60/x
  3. Step 3: Cross multiply
    64,499.40x = 96,749.10 × 50,502.60
  4. Step 4: Simplify right side
    64,499.40x = 4,886,081,097.66
  5. Step 5: Solve for x
    x = 4,886,081,097.66/64,499.40
  6. Step 6: Final answer
    x = 75,753.90

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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.