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Finding the Fourth Proportional to 164,710.13, 247,158.63 and 75,963.69

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Solution

The fourth proportional to 164,710.13, 247,158.63 and 75,963.69 is: 113,988.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,710.13 : 247,158.63 = 75,963.69 : x
  2. Step 2: Convert to fraction form
    164,710.13/247,158.63 = 75,963.69/x
  3. Step 3: Cross multiply
    164,710.13x = 247,158.63 × 75,963.69
  4. Step 4: Simplify right side
    164,710.13x = 18,775,081,550.14
  5. Step 5: Solve for x
    x = 18,775,081,550.14/164,710.13
  6. Step 6: Final answer
    x = 113,988.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.