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Finding the Fourth Proportional to 79,572.40, 119,358.60 and 37,426.28

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Solution

The fourth proportional to 79,572.40, 119,358.60 and 37,426.28 is: 56,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,572.40 : 119,358.60 = 37,426.28 : x
  2. Step 2: Convert to fraction form
    79,572.40/119,358.60 = 37,426.28/x
  3. Step 3: Cross multiply
    79,572.40x = 119,358.60 × 37,426.28
  4. Step 4: Simplify right side
    79,572.40x = 4,467,148,384.01
  5. Step 5: Solve for x
    x = 4,467,148,384.01/79,572.40
  6. Step 6: Final answer
    x = 56,139.42

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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.