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Finding the Fourth Proportional to 64,437.51, 88,721.69 and 58,532.61

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Solution

The fourth proportional to 64,437.51, 88,721.69 and 58,532.61 is: 80,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,437.51 : 88,721.69 = 58,532.61 : x
  2. Step 2: Convert to fraction form
    64,437.51/88,721.69 = 58,532.61/x
  3. Step 3: Cross multiply
    64,437.51x = 88,721.69 × 58,532.61
  4. Step 4: Simplify right side
    64,437.51x = 5,193,111,786.65
  5. Step 5: Solve for x
    x = 5,193,111,786.65/64,437.51
  6. Step 6: Final answer
    x = 80,591.44

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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.