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Finding the Fourth Proportional to 86,372.48, 119,223.88 and 50,574

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Solution

The fourth proportional to 86,372.48, 119,223.88 and 50,574 is: 69,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,372.48 : 119,223.88 = 50,574 : x
  2. Step 2: Convert to fraction form
    86,372.48/119,223.88 = 50,574/x
  3. Step 3: Cross multiply
    86,372.48x = 119,223.88 × 50,574
  4. Step 4: Simplify right side
    86,372.48x = 6,029,628,507.12
  5. Step 5: Solve for x
    x = 6,029,628,507.12/86,372.48
  6. Step 6: Final answer
    x = 69,809.60

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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.