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Finding the Fourth Proportional to 64,436.44, 88,926.74 and 36,143.96

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Solution

The fourth proportional to 64,436.44, 88,926.74 and 36,143.96 is: 49,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,436.44 : 88,926.74 = 36,143.96 : x
  2. Step 2: Convert to fraction form
    64,436.44/88,926.74 = 36,143.96/x
  3. Step 3: Cross multiply
    64,436.44x = 88,926.74 × 36,143.96
  4. Step 4: Simplify right side
    64,436.44x = 3,214,164,533.49
  5. Step 5: Solve for x
    x = 3,214,164,533.49/64,436.44
  6. Step 6: Final answer
    x = 49,881.16

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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.