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Finding the Fourth Proportional to 146,052.64, 201,552.80 and 78,984.64

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Solution

The fourth proportional to 146,052.64, 201,552.80 and 78,984.64 is: 108,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,052.64 : 201,552.80 = 78,984.64 : x
  2. Step 2: Convert to fraction form
    146,052.64/201,552.80 = 78,984.64/x
  3. Step 3: Cross multiply
    146,052.64x = 201,552.80 × 78,984.64
  4. Step 4: Simplify right side
    146,052.64x = 15,919,575,348.99
  5. Step 5: Solve for x
    x = 15,919,575,348.99/146,052.64
  6. Step 6: Final answer
    x = 108,998.89

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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.