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Finding the Fourth Proportional to 269,565.36, 371,879.92 and 156,322.48

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Solution

The fourth proportional to 269,565.36, 371,879.92 and 156,322.48 is: 215,655.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,565.36 : 371,879.92 = 156,322.48 : x
  2. Step 2: Convert to fraction form
    269,565.36/371,879.92 = 156,322.48/x
  3. Step 3: Cross multiply
    269,565.36x = 371,879.92 × 156,322.48
  4. Step 4: Simplify right side
    269,565.36x = 58,133,191,356.60
  5. Step 5: Solve for x
    x = 58,133,191,356.60/269,565.36
  6. Step 6: Final answer
    x = 215,655.27

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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.