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Finding the Fourth Proportional to 140,931.88, 211,401.66 and 41,089.66

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Solution

The fourth proportional to 140,931.88, 211,401.66 and 41,089.66 is: 61,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,931.88 : 211,401.66 = 41,089.66 : x
  2. Step 2: Convert to fraction form
    140,931.88/211,401.66 = 41,089.66/x
  3. Step 3: Cross multiply
    140,931.88x = 211,401.66 × 41,089.66
  4. Step 4: Simplify right side
    140,931.88x = 8,686,422,332.84
  5. Step 5: Solve for x
    x = 8,686,422,332.84/140,931.88
  6. Step 6: Final answer
    x = 61,635.61

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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.