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Finding the Fourth Proportional to 141,491.66, 212,186.13 and 77,497.34

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Solution

The fourth proportional to 141,491.66, 212,186.13 and 77,497.34 is: 116,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,491.66 : 212,186.13 = 77,497.34 : x
  2. Step 2: Convert to fraction form
    141,491.66/212,186.13 = 77,497.34/x
  3. Step 3: Cross multiply
    141,491.66x = 212,186.13 × 77,497.34
  4. Step 4: Simplify right side
    141,491.66x = 16,443,860,659.89
  5. Step 5: Solve for x
    x = 16,443,860,659.89/141,491.66
  6. Step 6: Final answer
    x = 116,217.88

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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.