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Finding the Fourth Proportional to 86,370.48, 119,221.12 and 50,572

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Solution

The fourth proportional to 86,370.48, 119,221.12 and 50,572 is: 69,806.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,370.48 : 119,221.12 = 50,572 : x
  2. Step 2: Convert to fraction form
    86,370.48/119,221.12 = 50,572/x
  3. Step 3: Cross multiply
    86,370.48x = 119,221.12 × 50,572
  4. Step 4: Simplify right side
    86,370.48x = 6,029,250,480.64
  5. Step 5: Solve for x
    x = 6,029,250,480.64/86,370.48
  6. Step 6: Final answer
    x = 69,806.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.