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Finding the Fourth Proportional to 255,390.84, 352,127.07 and 159,731.46

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Solution

The fourth proportional to 255,390.84, 352,127.07 and 159,731.46 is: 220,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,390.84 : 352,127.07 = 159,731.46 : x
  2. Step 2: Convert to fraction form
    255,390.84/352,127.07 = 159,731.46/x
  3. Step 3: Cross multiply
    255,390.84x = 352,127.07 × 159,731.46
  4. Step 4: Simplify right side
    255,390.84x = 56,245,770,996.62
  5. Step 5: Solve for x
    x = 56,245,770,996.62/255,390.84
  6. Step 6: Final answer
    x = 220,234.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.