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Finding the Fourth Proportional to 149,689.90, 206,617.85 and 92,347.07

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Solution

The fourth proportional to 149,689.90, 206,617.85 and 92,347.07 is: 127,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,689.90 : 206,617.85 = 92,347.07 : x
  2. Step 2: Convert to fraction form
    149,689.90/206,617.85 = 92,347.07/x
  3. Step 3: Cross multiply
    149,689.90x = 206,617.85 × 92,347.07
  4. Step 4: Simplify right side
    149,689.90x = 19,080,552,254.98
  5. Step 5: Solve for x
    x = 19,080,552,254.98/149,689.90
  6. Step 6: Final answer
    x = 127,467.20

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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.