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Finding the Fourth Proportional to 64,709.01, 96,981.74 and 29,132.45

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Solution

The fourth proportional to 64,709.01, 96,981.74 and 29,132.45 is: 43,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,709.01 : 96,981.74 = 29,132.45 : x
  2. Step 2: Convert to fraction form
    64,709.01/96,981.74 = 29,132.45/x
  3. Step 3: Cross multiply
    64,709.01x = 96,981.74 × 29,132.45
  4. Step 4: Simplify right side
    64,709.01x = 2,825,315,691.46
  5. Step 5: Solve for x
    x = 2,825,315,691.46/64,709.01
  6. Step 6: Final answer
    x = 43,661.86

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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.