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Finding the Fourth Proportional to 64,314.81, 96,463.71 and 40,551.84

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Solution

The fourth proportional to 64,314.81, 96,463.71 and 40,551.84 is: 60,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,314.81 : 96,463.71 = 40,551.84 : x
  2. Step 2: Convert to fraction form
    64,314.81/96,463.71 = 40,551.84/x
  3. Step 3: Cross multiply
    64,314.81x = 96,463.71 × 40,551.84
  4. Step 4: Simplify right side
    64,314.81x = 3,911,780,933.73
  5. Step 5: Solve for x
    x = 3,911,780,933.73/64,314.81
  6. Step 6: Final answer
    x = 60,822.40

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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.