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Finding the Fourth Proportional to 47,167.29, 70,750.89 and 12,106.94

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Solution

The fourth proportional to 47,167.29, 70,750.89 and 12,106.94 is: 18,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,167.29 : 70,750.89 = 12,106.94 : x
  2. Step 2: Convert to fraction form
    47,167.29/70,750.89 = 12,106.94/x
  3. Step 3: Cross multiply
    47,167.29x = 70,750.89 × 12,106.94
  4. Step 4: Simplify right side
    47,167.29x = 856,576,426.42
  5. Step 5: Solve for x
    x = 856,576,426.42/47,167.29
  6. Step 6: Final answer
    x = 18,160.39

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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.