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Finding the Fourth Proportional to 342,825.72, 514,272.60 and 126,741.10

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Solution

The fourth proportional to 342,825.72, 514,272.60 and 126,741.10 is: 190,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,825.72 : 514,272.60 = 126,741.10 : x
  2. Step 2: Convert to fraction form
    342,825.72/514,272.60 = 126,741.10/x
  3. Step 3: Cross multiply
    342,825.72x = 514,272.60 × 126,741.10
  4. Step 4: Simplify right side
    342,825.72x = 65,179,475,023.86
  5. Step 5: Solve for x
    x = 65,179,475,023.86/342,825.72
  6. Step 6: Final answer
    x = 190,124.23

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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.