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Finding the Fourth Proportional to 64,436.46, 88,922.04 and 36,142.16

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Solution

The fourth proportional to 64,436.46, 88,922.04 and 36,142.16 is: 49,876.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,436.46 : 88,922.04 = 36,142.16 : x
  2. Step 2: Convert to fraction form
    64,436.46/88,922.04 = 36,142.16/x
  3. Step 3: Cross multiply
    64,436.46x = 88,922.04 × 36,142.16
  4. Step 4: Simplify right side
    64,436.46x = 3,213,834,152.60
  5. Step 5: Solve for x
    x = 3,213,834,152.60/64,436.46
  6. Step 6: Final answer
    x = 49,876.02

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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.