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Finding the Fourth Proportional to 64,423.65, 88,904.46 and 36,129.94

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Solution

The fourth proportional to 64,423.65, 88,904.46 and 36,129.94 is: 49,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,423.65 : 88,904.46 = 36,129.94 : x
  2. Step 2: Convert to fraction form
    64,423.65/88,904.46 = 36,129.94/x
  3. Step 3: Cross multiply
    64,423.65x = 88,904.46 × 36,129.94
  4. Step 4: Simplify right side
    64,423.65x = 3,212,112,805.53
  5. Step 5: Solve for x
    x = 3,212,112,805.53/64,423.65
  6. Step 6: Final answer
    x = 49,859.22

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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.