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Finding the Fourth Proportional to 342,857.13, 514,319.54 and 118,187.97

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Solution

The fourth proportional to 342,857.13, 514,319.54 and 118,187.97 is: 177,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,857.13 : 514,319.54 = 118,187.97 : x
  2. Step 2: Convert to fraction form
    342,857.13/514,319.54 = 118,187.97/x
  3. Step 3: Cross multiply
    342,857.13x = 514,319.54 × 118,187.97
  4. Step 4: Simplify right side
    342,857.13x = 60,786,381,772.99
  5. Step 5: Solve for x
    x = 60,786,381,772.99/342,857.13
  6. Step 6: Final answer
    x = 177,293.62

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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.