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Finding the Fourth Proportional to 294,381, 406,298.79 and 173,515.23

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Solution

The fourth proportional to 294,381, 406,298.79 and 173,515.23 is: 239,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,381 : 406,298.79 = 173,515.23 : x
  2. Step 2: Convert to fraction form
    294,381/406,298.79 = 173,515.23/x
  3. Step 3: Cross multiply
    294,381x = 406,298.79 × 173,515.23
  4. Step 4: Simplify right side
    294,381x = 70,499,027,995.57
  5. Step 5: Solve for x
    x = 70,499,027,995.57/294,381
  6. Step 6: Final answer
    x = 239,482.26

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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.