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Finding the Fourth Proportional to 543,166.90, 814,746.30 and 164,086.90

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Solution

The fourth proportional to 543,166.90, 814,746.30 and 164,086.90 is: 246,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,166.90 : 814,746.30 = 164,086.90 : x
  2. Step 2: Convert to fraction form
    543,166.90/814,746.30 = 164,086.90/x
  3. Step 3: Cross multiply
    543,166.90x = 814,746.30 × 164,086.90
  4. Step 4: Simplify right side
    543,166.90x = 133,689,194,653.47
  5. Step 5: Solve for x
    x = 133,689,194,653.47/543,166.90
  6. Step 6: Final answer
    x = 246,129.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.