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Finding the Fourth Proportional to 146,805.60, 220,111.20 and 53,299.20

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Solution

The fourth proportional to 146,805.60, 220,111.20 and 53,299.20 is: 79,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,805.60 : 220,111.20 = 53,299.20 : x
  2. Step 2: Convert to fraction form
    146,805.60/220,111.20 = 53,299.20/x
  3. Step 3: Cross multiply
    146,805.60x = 220,111.20 × 53,299.20
  4. Step 4: Simplify right side
    146,805.60x = 11,731,750,871.04
  5. Step 5: Solve for x
    x = 11,731,750,871.04/146,805.60
  6. Step 6: Final answer
    x = 79,913.51

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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.