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Finding the Fourth Proportional to 253,710.66, 349,951.96 and 163,181.18

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Solution

The fourth proportional to 253,710.66, 349,951.96 and 163,181.18 is: 225,081.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,710.66 : 349,951.96 = 163,181.18 : x
  2. Step 2: Convert to fraction form
    253,710.66/349,951.96 = 163,181.18/x
  3. Step 3: Cross multiply
    253,710.66x = 349,951.96 × 163,181.18
  4. Step 4: Simplify right side
    253,710.66x = 57,105,573,776.11
  5. Step 5: Solve for x
    x = 57,105,573,776.11/253,710.66
  6. Step 6: Final answer
    x = 225,081.49

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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.