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Finding the Fourth Proportional to 210,552.48, 315,903.24 and 131,574.24

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Solution

The fourth proportional to 210,552.48, 315,903.24 and 131,574.24 is: 197,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,552.48 : 315,903.24 = 131,574.24 : x
  2. Step 2: Convert to fraction form
    210,552.48/315,903.24 = 131,574.24/x
  3. Step 3: Cross multiply
    210,552.48x = 315,903.24 × 131,574.24
  4. Step 4: Simplify right side
    210,552.48x = 41,564,728,716.54
  5. Step 5: Solve for x
    x = 41,564,728,716.54/210,552.48
  6. Step 6: Final answer
    x = 197,407.93

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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.