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Finding the Fourth Proportional to 262,402.60, 393,798.30 and 104,744.20

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Solution

The fourth proportional to 262,402.60, 393,798.30 and 104,744.20 is: 157,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,402.60 : 393,798.30 = 104,744.20 : x
  2. Step 2: Convert to fraction form
    262,402.60/393,798.30 = 104,744.20/x
  3. Step 3: Cross multiply
    262,402.60x = 393,798.30 × 104,744.20
  4. Step 4: Simplify right side
    262,402.60x = 41,248,087,894.86
  5. Step 5: Solve for x
    x = 41,248,087,894.86/262,402.60
  6. Step 6: Final answer
    x = 157,193.90

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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.