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Finding the Fourth Proportional to 141,846.81, 212,697.71 and 47,042.79

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Solution

The fourth proportional to 141,846.81, 212,697.71 and 47,042.79 is: 70,540.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,846.81 : 212,697.71 = 47,042.79 : x
  2. Step 2: Convert to fraction form
    141,846.81/212,697.71 = 47,042.79/x
  3. Step 3: Cross multiply
    141,846.81x = 212,697.71 × 47,042.79
  4. Step 4: Simplify right side
    141,846.81x = 10,005,893,705.01
  5. Step 5: Solve for x
    x = 10,005,893,705.01/141,846.81
  6. Step 6: Final answer
    x = 70,540.14

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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.