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Finding the Fourth Proportional to 79,125.76, 118,606.63 and 49,475.51

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Solution

The fourth proportional to 79,125.76, 118,606.63 and 49,475.51 is: 74,161.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,125.76 : 118,606.63 = 49,475.51 : x
  2. Step 2: Convert to fraction form
    79,125.76/118,606.63 = 49,475.51/x
  3. Step 3: Cross multiply
    79,125.76x = 118,606.63 × 49,475.51
  4. Step 4: Simplify right side
    79,125.76x = 5,868,123,508.63
  5. Step 5: Solve for x
    x = 5,868,123,508.63/79,125.76
  6. Step 6: Final answer
    x = 74,161.99

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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.