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Finding the Fourth Proportional to 207,699.39, 286,625.39 and 112,206.06

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Solution

The fourth proportional to 207,699.39, 286,625.39 and 112,206.06 is: 154,844.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,699.39 : 286,625.39 = 112,206.06 : x
  2. Step 2: Convert to fraction form
    207,699.39/286,625.39 = 112,206.06/x
  3. Step 3: Cross multiply
    207,699.39x = 286,625.39 × 112,206.06
  4. Step 4: Simplify right side
    207,699.39x = 32,161,105,146.83
  5. Step 5: Solve for x
    x = 32,161,105,146.83/207,699.39
  6. Step 6: Final answer
    x = 154,844.49

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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.