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Finding the Fourth Proportional to 64,145.60, 96,218.40 and 22,596.80

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Solution

The fourth proportional to 64,145.60, 96,218.40 and 22,596.80 is: 33,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.60 : 96,218.40 = 22,596.80 : x
  2. Step 2: Convert to fraction form
    64,145.60/96,218.40 = 22,596.80/x
  3. Step 3: Cross multiply
    64,145.60x = 96,218.40 × 22,596.80
  4. Step 4: Simplify right side
    64,145.60x = 2,174,227,941.12
  5. Step 5: Solve for x
    x = 2,174,227,941.12/64,145.60
  6. Step 6: Final answer
    x = 33,895.20

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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.