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Finding the Fourth Proportional to 64,674.96, 96,441.28 and 56,809.65

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Solution

The fourth proportional to 64,674.96, 96,441.28 and 56,809.65 is: 84,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,674.96 : 96,441.28 = 56,809.65 : x
  2. Step 2: Convert to fraction form
    64,674.96/96,441.28 = 56,809.65/x
  3. Step 3: Cross multiply
    64,674.96x = 96,441.28 × 56,809.65
  4. Step 4: Simplify right side
    64,674.96x = 5,478,795,901.54
  5. Step 5: Solve for x
    x = 5,478,795,901.54/64,674.96
  6. Step 6: Final answer
    x = 84,712.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.