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Finding the Fourth Proportional to 64,172.52, 88,558.62 and 35,490.66

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Solution

The fourth proportional to 64,172.52, 88,558.62 and 35,490.66 is: 48,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,172.52 : 88,558.62 = 35,490.66 : x
  2. Step 2: Convert to fraction form
    64,172.52/88,558.62 = 35,490.66/x
  3. Step 3: Cross multiply
    64,172.52x = 88,558.62 × 35,490.66
  4. Step 4: Simplify right side
    64,172.52x = 3,143,003,872.49
  5. Step 5: Solve for x
    x = 3,143,003,872.49/64,172.52
  6. Step 6: Final answer
    x = 48,977.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.