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Finding the Fourth Proportional to 64,113.76, 96,179.73 and 19,744.12

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Solution

The fourth proportional to 64,113.76, 96,179.73 and 19,744.12 is: 29,618.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,113.76 : 96,179.73 = 19,744.12 : x
  2. Step 2: Convert to fraction form
    64,113.76/96,179.73 = 19,744.12/x
  3. Step 3: Cross multiply
    64,113.76x = 96,179.73 × 19,744.12
  4. Step 4: Simplify right side
    64,113.76x = 1,898,984,130.69
  5. Step 5: Solve for x
    x = 1,898,984,130.69/64,113.76
  6. Step 6: Final answer
    x = 29,618.98

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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.