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Finding the Fourth Proportional to 216,174.72, 298,318.56 and 125,530.56

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Solution

The fourth proportional to 216,174.72, 298,318.56 and 125,530.56 is: 173,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,174.72 : 298,318.56 = 125,530.56 : x
  2. Step 2: Convert to fraction form
    216,174.72/298,318.56 = 125,530.56/x
  3. Step 3: Cross multiply
    216,174.72x = 298,318.56 × 125,530.56
  4. Step 4: Simplify right side
    216,174.72x = 37,448,095,895.19
  5. Step 5: Solve for x
    x = 37,448,095,895.19/216,174.72
  6. Step 6: Final answer
    x = 173,230.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.