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Finding the Fourth Proportional to 262,200.80, 393,398.40 and 104,542.40

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Solution

The fourth proportional to 262,200.80, 393,398.40 and 104,542.40 is: 156,852.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,200.80 : 393,398.40 = 104,542.40 : x
  2. Step 2: Convert to fraction form
    262,200.80/393,398.40 = 104,542.40/x
  3. Step 3: Cross multiply
    262,200.80x = 393,398.40 × 104,542.40
  4. Step 4: Simplify right side
    262,200.80x = 41,126,812,892.16
  5. Step 5: Solve for x
    x = 41,126,812,892.16/262,200.80
  6. Step 6: Final answer
    x = 156,852.35

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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.