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Finding the Fourth Proportional to 274,689.90, 412,031.00 and 166,645.01

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Solution

The fourth proportional to 274,689.90, 412,031.00 and 166,645.01 is: 249,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,689.90 : 412,031.00 = 166,645.01 : x
  2. Step 2: Convert to fraction form
    274,689.90/412,031.00 = 166,645.01/x
  3. Step 3: Cross multiply
    274,689.90x = 412,031.00 × 166,645.01
  4. Step 4: Simplify right side
    274,689.90x = 68,662,911,562.00
  5. Step 5: Solve for x
    x = 68,662,911,562.00/274,689.90
  6. Step 6: Final answer
    x = 249,965.18

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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.