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Finding the Fourth Proportional to 118,525.86, 177,797.82 and 39,640.22

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Solution

The fourth proportional to 118,525.86, 177,797.82 and 39,640.22 is: 59,463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,525.86 : 177,797.82 = 39,640.22 : x
  2. Step 2: Convert to fraction form
    118,525.86/177,797.82 = 39,640.22/x
  3. Step 3: Cross multiply
    118,525.86x = 177,797.82 × 39,640.22
  4. Step 4: Simplify right side
    118,525.86x = 7,047,944,700.32
  5. Step 5: Solve for x
    x = 7,047,944,700.32/118,525.86
  6. Step 6: Final answer
    x = 59,463.35

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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.