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Finding the Fourth Proportional to 293,307.48, 404,760.78 and 165,979.80

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Solution

The fourth proportional to 293,307.48, 404,760.78 and 165,979.80 is: 229,050.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,307.48 : 404,760.78 = 165,979.80 : x
  2. Step 2: Convert to fraction form
    293,307.48/404,760.78 = 165,979.80/x
  3. Step 3: Cross multiply
    293,307.48x = 404,760.78 × 165,979.80
  4. Step 4: Simplify right side
    293,307.48x = 67,182,113,312.24
  5. Step 5: Solve for x
    x = 67,182,113,312.24/293,307.48
  6. Step 6: Final answer
    x = 229,050.12

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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.