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Finding the Fourth Proportional to 342,742.60, 514,163.11 and 118,042.93

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Solution

The fourth proportional to 342,742.60, 514,163.11 and 118,042.93 is: 177,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,742.60 : 514,163.11 = 118,042.93 : x
  2. Step 2: Convert to fraction form
    342,742.60/514,163.11 = 118,042.93/x
  3. Step 3: Cross multiply
    342,742.60x = 514,163.11 × 118,042.93
  4. Step 4: Simplify right side
    342,742.60x = 60,693,320,002.31
  5. Step 5: Solve for x
    x = 60,693,320,002.31/342,742.60
  6. Step 6: Final answer
    x = 177,081.34

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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.