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Finding the Fourth Proportional to 64,187.76, 96,150.60 and 37,812.72

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Solution

The fourth proportional to 64,187.76, 96,150.60 and 37,812.72 is: 56,641.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,187.76 : 96,150.60 = 37,812.72 : x
  2. Step 2: Convert to fraction form
    64,187.76/96,150.60 = 37,812.72/x
  3. Step 3: Cross multiply
    64,187.76x = 96,150.60 × 37,812.72
  4. Step 4: Simplify right side
    64,187.76x = 3,635,715,715.63
  5. Step 5: Solve for x
    x = 3,635,715,715.63/64,187.76
  6. Step 6: Final answer
    x = 56,641.88

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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.