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Finding the Fourth Proportional to 64,362.40, 96,500.40 and 31,098.40

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Solution

The fourth proportional to 64,362.40, 96,500.40 and 31,098.40 is: 46,626.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,362.40 : 96,500.40 = 31,098.40 : x
  2. Step 2: Convert to fraction form
    64,362.40/96,500.40 = 31,098.40/x
  3. Step 3: Cross multiply
    64,362.40x = 96,500.40 × 31,098.40
  4. Step 4: Simplify right side
    64,362.40x = 3,001,008,039.36
  5. Step 5: Solve for x
    x = 3,001,008,039.36/64,362.40
  6. Step 6: Final answer
    x = 46,626.73

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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.