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Finding the Fourth Proportional to 118,268.88, 177,365.16 and 39,362.16

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Solution

The fourth proportional to 118,268.88, 177,365.16 and 39,362.16 is: 59,030.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,268.88 : 177,365.16 = 39,362.16 : x
  2. Step 2: Convert to fraction form
    118,268.88/177,365.16 = 39,362.16/x
  3. Step 3: Cross multiply
    118,268.88x = 177,365.16 × 39,362.16
  4. Step 4: Simplify right side
    118,268.88x = 6,981,475,806.35
  5. Step 5: Solve for x
    x = 6,981,475,806.35/118,268.88
  6. Step 6: Final answer
    x = 59,030.54

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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.