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Finding the Fourth Proportional to 207,159.36, 310,743.09 and 65,001.66

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Solution

The fourth proportional to 207,159.36, 310,743.09 and 65,001.66 is: 97,503.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,159.36 : 310,743.09 = 65,001.66 : x
  2. Step 2: Convert to fraction form
    207,159.36/310,743.09 = 65,001.66/x
  3. Step 3: Cross multiply
    207,159.36x = 310,743.09 × 65,001.66
  4. Step 4: Simplify right side
    207,159.36x = 20,198,816,683.53
  5. Step 5: Solve for x
    x = 20,198,816,683.53/207,159.36
  6. Step 6: Final answer
    x = 97,503.76

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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.