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Finding the Fourth Proportional to 342,856.37, 514,318.38 and 118,187.22

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Solution

The fourth proportional to 342,856.37, 514,318.38 and 118,187.22 is: 177,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,856.37 : 514,318.38 = 118,187.22 : x
  2. Step 2: Convert to fraction form
    342,856.37/514,318.38 = 118,187.22/x
  3. Step 3: Cross multiply
    342,856.37x = 514,318.38 × 118,187.22
  4. Step 4: Simplify right side
    342,856.37x = 60,785,859,527.10
  5. Step 5: Solve for x
    x = 60,785,859,527.10/342,856.37
  6. Step 6: Final answer
    x = 177,292.49

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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.