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Finding the Fourth Proportional to 293,486.60, 404,823.30 and 201,561.51

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Solution

The fourth proportional to 293,486.60, 404,823.30 and 201,561.51 is: 278,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,486.60 : 404,823.30 = 201,561.51 : x
  2. Step 2: Convert to fraction form
    293,486.60/404,823.30 = 201,561.51/x
  3. Step 3: Cross multiply
    293,486.60x = 404,823.30 × 201,561.51
  4. Step 4: Simplify right side
    293,486.60x = 81,596,795,631.18
  5. Step 5: Solve for x
    x = 81,596,795,631.18/293,486.60
  6. Step 6: Final answer
    x = 278,025.63

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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.