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Finding the Fourth Proportional to 104,685.66, 144,469.17 and 56,942.06

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Solution

The fourth proportional to 104,685.66, 144,469.17 and 56,942.06 is: 78,581.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,685.66 : 144,469.17 = 56,942.06 : x
  2. Step 2: Convert to fraction form
    104,685.66/144,469.17 = 56,942.06/x
  3. Step 3: Cross multiply
    104,685.66x = 144,469.17 × 56,942.06
  4. Step 4: Simplify right side
    104,685.66x = 8,226,371,423.94
  5. Step 5: Solve for x
    x = 8,226,371,423.94/104,685.66
  6. Step 6: Final answer
    x = 78,581.65

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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.