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Finding the Fourth Proportional to 202,544.54, 279,116.79 and 145,848.86

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Solution

The fourth proportional to 202,544.54, 279,116.79 and 145,848.86 is: 200,987.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,544.54 : 279,116.79 = 145,848.86 : x
  2. Step 2: Convert to fraction form
    202,544.54/279,116.79 = 145,848.86/x
  3. Step 3: Cross multiply
    202,544.54x = 279,116.79 × 145,848.86
  4. Step 4: Simplify right side
    202,544.54x = 40,708,865,628.36
  5. Step 5: Solve for x
    x = 40,708,865,628.36/202,544.54
  6. Step 6: Final answer
    x = 200,987.23

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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.