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Finding the Fourth Proportional to 157,660.80, 236,491.20 and 154,550.40

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Solution

The fourth proportional to 157,660.80, 236,491.20 and 154,550.40 is: 231,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,660.80 : 236,491.20 = 154,550.40 : x
  2. Step 2: Convert to fraction form
    157,660.80/236,491.20 = 154,550.40/x
  3. Step 3: Cross multiply
    157,660.80x = 236,491.20 × 154,550.40
  4. Step 4: Simplify right side
    157,660.80x = 36,549,809,556.48
  5. Step 5: Solve for x
    x = 36,549,809,556.48/157,660.80
  6. Step 6: Final answer
    x = 231,825.60

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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.