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Finding the Fourth Proportional to 262,203.90, 361,748.07 and 154,720.14

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Solution

The fourth proportional to 262,203.90, 361,748.07 and 154,720.14 is: 213,458.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,203.90 : 361,748.07 = 154,720.14 : x
  2. Step 2: Convert to fraction form
    262,203.90/361,748.07 = 154,720.14/x
  3. Step 3: Cross multiply
    262,203.90x = 361,748.07 × 154,720.14
  4. Step 4: Simplify right side
    262,203.90x = 55,969,712,035.13
  5. Step 5: Solve for x
    x = 55,969,712,035.13/262,203.90
  6. Step 6: Final answer
    x = 213,458.73

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1.5x scale

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.