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Finding the Fourth Proportional to 165,041.78, 247,560.70 and 52,720.52

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Solution

The fourth proportional to 165,041.78, 247,560.70 and 52,720.52 is: 79,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,041.78 : 247,560.70 = 52,720.52 : x
  2. Step 2: Convert to fraction form
    165,041.78/247,560.70 = 52,720.52/x
  3. Step 3: Cross multiply
    165,041.78x = 247,560.70 × 52,720.52
  4. Step 4: Simplify right side
    165,041.78x = 13,051,528,835.56
  5. Step 5: Solve for x
    x = 13,051,528,835.56/165,041.78
  6. Step 6: Final answer
    x = 79,080.15

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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.