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Finding the Fourth Proportional to 342,856.40, 514,318.41 and 118,187.24

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Solution

The fourth proportional to 342,856.40, 514,318.41 and 118,187.24 is: 177,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,856.40 : 514,318.41 = 118,187.24 : x
  2. Step 2: Convert to fraction form
    342,856.40/514,318.41 = 118,187.24/x
  3. Step 3: Cross multiply
    342,856.40x = 514,318.41 × 118,187.24
  4. Step 4: Simplify right side
    342,856.40x = 60,785,870,787.50
  5. Step 5: Solve for x
    x = 60,785,870,787.50/342,856.40
  6. Step 6: Final answer
    x = 177,292.51

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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.