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Finding the Fourth Proportional to 64,448.58, 88,939.65 and 36,154.87

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Solution

The fourth proportional to 64,448.58, 88,939.65 and 36,154.87 is: 49,894.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,448.58 : 88,939.65 = 36,154.87 : x
  2. Step 2: Convert to fraction form
    64,448.58/88,939.65 = 36,154.87/x
  3. Step 3: Cross multiply
    64,448.58x = 88,939.65 × 36,154.87
  4. Step 4: Simplify right side
    64,448.58x = 3,215,601,592.06
  5. Step 5: Solve for x
    x = 3,215,601,592.06/64,448.58
  6. Step 6: Final answer
    x = 49,894.07

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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.