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Finding the Fourth Proportional to 64,026.40, 95,953.20 and 45,536.80

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Solution

The fourth proportional to 64,026.40, 95,953.20 and 45,536.80 is: 68,243.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,026.40 : 95,953.20 = 45,536.80 : x
  2. Step 2: Convert to fraction form
    64,026.40/95,953.20 = 45,536.80/x
  3. Step 3: Cross multiply
    64,026.40x = 95,953.20 × 45,536.80
  4. Step 4: Simplify right side
    64,026.40x = 4,369,401,677.76
  5. Step 5: Solve for x
    x = 4,369,401,677.76/64,026.40
  6. Step 6: Final answer
    x = 68,243.75

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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.