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Finding the Fourth Proportional to 64,788.65, 97,196.61 and 36,722.15

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Solution

The fourth proportional to 64,788.65, 97,196.61 and 36,722.15 is: 55,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,788.65 : 97,196.61 = 36,722.15 : x
  2. Step 2: Convert to fraction form
    64,788.65/97,196.61 = 36,722.15/x
  3. Step 3: Cross multiply
    64,788.65x = 97,196.61 × 36,722.15
  4. Step 4: Simplify right side
    64,788.65x = 3,569,268,491.91
  5. Step 5: Solve for x
    x = 3,569,268,491.91/64,788.65
  6. Step 6: Final answer
    x = 55,090.95

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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.