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Finding the Fourth Proportional to 262,487.66, 393,411.62 and 136,058.20

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Solution

The fourth proportional to 262,487.66, 393,411.62 and 136,058.20 is: 203,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,487.66 : 393,411.62 = 136,058.20 : x
  2. Step 2: Convert to fraction form
    262,487.66/393,411.62 = 136,058.20/x
  3. Step 3: Cross multiply
    262,487.66x = 393,411.62 × 136,058.20
  4. Step 4: Simplify right side
    262,487.66x = 53,526,876,195.99
  5. Step 5: Solve for x
    x = 53,526,876,195.99/262,487.66
  6. Step 6: Final answer
    x = 203,921.50

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1.5x scale

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.