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Finding the Fourth Proportional to 286,252.20, 429,572.70 and 159,892.20

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Solution

The fourth proportional to 286,252.20, 429,572.70 and 159,892.20 is: 239,946.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,252.20 : 429,572.70 = 159,892.20 : x
  2. Step 2: Convert to fraction form
    286,252.20/429,572.70 = 159,892.20/x
  3. Step 3: Cross multiply
    286,252.20x = 429,572.70 × 159,892.20
  4. Step 4: Simplify right side
    286,252.20x = 68,685,324,062.94
  5. Step 5: Solve for x
    x = 68,685,324,062.94/286,252.20
  6. Step 6: Final answer
    x = 239,946.89

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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.