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Finding the Fourth Proportional to 168,420.24, 252,629.42 and 42,060.24

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Solution

The fourth proportional to 168,420.24, 252,629.42 and 42,060.24 is: 63,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,420.24 : 252,629.42 = 42,060.24 : x
  2. Step 2: Convert to fraction form
    168,420.24/252,629.42 = 42,060.24/x
  3. Step 3: Cross multiply
    168,420.24x = 252,629.42 × 42,060.24
  4. Step 4: Simplify right side
    168,420.24x = 10,625,653,825.96
  5. Step 5: Solve for x
    x = 10,625,653,825.96/168,420.24
  6. Step 6: Final answer
    x = 63,090.12

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1.5x scale

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.