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Finding the Fourth Proportional to 165,783.60, 248,614.65 and 53,493.30

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Solution

The fourth proportional to 165,783.60, 248,614.65 and 53,493.30 is: 80,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,783.60 : 248,614.65 = 53,493.30 : x
  2. Step 2: Convert to fraction form
    165,783.60/248,614.65 = 53,493.30/x
  3. Step 3: Cross multiply
    165,783.60x = 248,614.65 × 53,493.30
  4. Step 4: Simplify right side
    165,783.60x = 13,299,218,056.85
  5. Step 5: Solve for x
    x = 13,299,218,056.85/165,783.60
  6. Step 6: Final answer
    x = 80,220.35

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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.