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Finding the Fourth Proportional to 79,722.61, 119,501.88 and 35,370.25

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Solution

The fourth proportional to 79,722.61, 119,501.88 and 35,370.25 is: 53,018.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,722.61 : 119,501.88 = 35,370.25 : x
  2. Step 2: Convert to fraction form
    79,722.61/119,501.88 = 35,370.25/x
  3. Step 3: Cross multiply
    79,722.61x = 119,501.88 × 35,370.25
  4. Step 4: Simplify right side
    79,722.61x = 4,226,811,371.07
  5. Step 5: Solve for x
    x = 4,226,811,371.07/79,722.61
  6. Step 6: Final answer
    x = 53,018.98

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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.