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Finding the Fourth Proportional to 140,969.70, 211,405.37 and 56,708.01

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Solution

The fourth proportional to 140,969.70, 211,405.37 and 56,708.01 is: 85,042.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,969.70 : 211,405.37 = 56,708.01 : x
  2. Step 2: Convert to fraction form
    140,969.70/211,405.37 = 56,708.01/x
  3. Step 3: Cross multiply
    140,969.70x = 211,405.37 × 56,708.01
  4. Step 4: Simplify right side
    140,969.70x = 11,988,377,552.47
  5. Step 5: Solve for x
    x = 11,988,377,552.47/140,969.70
  6. Step 6: Final answer
    x = 85,042.23

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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.