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Finding the Fourth Proportional to 363,490.32, 545,196.54 and 126,837.48

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Solution

The fourth proportional to 363,490.32, 545,196.54 and 126,837.48 is: 190,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,490.32 : 545,196.54 = 126,837.48 : x
  2. Step 2: Convert to fraction form
    363,490.32/545,196.54 = 126,837.48/x
  3. Step 3: Cross multiply
    363,490.32x = 545,196.54 × 126,837.48
  4. Step 4: Simplify right side
    363,490.32x = 69,151,355,238.32
  5. Step 5: Solve for x
    x = 69,151,355,238.32/363,490.32
  6. Step 6: Final answer
    x = 190,242.63

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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.