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Finding the Fourth Proportional to 147,906.60, 221,859.90 and 136,501.80

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Solution

The fourth proportional to 147,906.60, 221,859.90 and 136,501.80 is: 204,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,906.60 : 221,859.90 = 136,501.80 : x
  2. Step 2: Convert to fraction form
    147,906.60/221,859.90 = 136,501.80/x
  3. Step 3: Cross multiply
    147,906.60x = 221,859.90 × 136,501.80
  4. Step 4: Simplify right side
    147,906.60x = 30,284,275,697.82
  5. Step 5: Solve for x
    x = 30,284,275,697.82/147,906.60
  6. Step 6: Final answer
    x = 204,752.70

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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.