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Finding the Fourth Proportional to 207,053.13, 310,645.35 and 73,930.44

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Solution

The fourth proportional to 207,053.13, 310,645.35 and 73,930.44 is: 110,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,053.13 : 310,645.35 = 73,930.44 : x
  2. Step 2: Convert to fraction form
    207,053.13/310,645.35 = 73,930.44/x
  3. Step 3: Cross multiply
    207,053.13x = 310,645.35 × 73,930.44
  4. Step 4: Simplify right side
    207,053.13x = 22,966,147,409.45
  5. Step 5: Solve for x
    x = 22,966,147,409.45/207,053.13
  6. Step 6: Final answer
    x = 110,919.10

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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.