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Finding the Fourth Proportional to 164,988.62, 247,309.32 and 105,062.66

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Solution

The fourth proportional to 164,988.62, 247,309.32 and 105,062.66 is: 157,483.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,988.62 : 247,309.32 = 105,062.66 : x
  2. Step 2: Convert to fraction form
    164,988.62/247,309.32 = 105,062.66/x
  3. Step 3: Cross multiply
    164,988.62x = 247,309.32 × 105,062.66
  4. Step 4: Simplify right side
    164,988.62x = 25,982,975,001.99
  5. Step 5: Solve for x
    x = 25,982,975,001.99/164,988.62
  6. Step 6: Final answer
    x = 157,483.44

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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.