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Finding the Fourth Proportional to 155,144.70, 232,717.05 and 147,927.60

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Solution

The fourth proportional to 155,144.70, 232,717.05 and 147,927.60 is: 221,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,144.70 : 232,717.05 = 147,927.60 : x
  2. Step 2: Convert to fraction form
    155,144.70/232,717.05 = 147,927.60/x
  3. Step 3: Cross multiply
    155,144.70x = 232,717.05 × 147,927.60
  4. Step 4: Simplify right side
    155,144.70x = 34,425,274,685.58
  5. Step 5: Solve for x
    x = 34,425,274,685.58/155,144.70
  6. Step 6: Final answer
    x = 221,891.40

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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.