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Finding the Fourth Proportional to 64,165.30, 96,065.70 and 60,674.20

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Solution

The fourth proportional to 64,165.30, 96,065.70 and 60,674.20 is: 90,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,165.30 : 96,065.70 = 60,674.20 : x
  2. Step 2: Convert to fraction form
    64,165.30/96,065.70 = 60,674.20/x
  3. Step 3: Cross multiply
    64,165.30x = 96,065.70 × 60,674.20
  4. Step 4: Simplify right side
    64,165.30x = 5,828,709,494.94
  5. Step 5: Solve for x
    x = 5,828,709,494.94/64,165.30
  6. Step 6: Final answer
    x = 90,838.97

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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.