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Finding the Fourth Proportional to 64,495.80, 96,743.70 and 44,812.80

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Solution

The fourth proportional to 64,495.80, 96,743.70 and 44,812.80 is: 67,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,495.80 : 96,743.70 = 44,812.80 : x
  2. Step 2: Convert to fraction form
    64,495.80/96,743.70 = 44,812.80/x
  3. Step 3: Cross multiply
    64,495.80x = 96,743.70 × 44,812.80
  4. Step 4: Simplify right side
    64,495.80x = 4,335,356,079.36
  5. Step 5: Solve for x
    x = 4,335,356,079.36/64,495.80
  6. Step 6: Final answer
    x = 67,219.20

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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.