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Finding the Fourth Proportional to 118,411.01, 177,610.98 and 43,525.70

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Solution

The fourth proportional to 118,411.01, 177,610.98 and 43,525.70 is: 65,286.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,411.01 : 177,610.98 = 43,525.70 : x
  2. Step 2: Convert to fraction form
    118,411.01/177,610.98 = 43,525.70/x
  3. Step 3: Cross multiply
    118,411.01x = 177,610.98 × 43,525.70
  4. Step 4: Simplify right side
    118,411.01x = 7,730,642,927.62
  5. Step 5: Solve for x
    x = 7,730,642,927.62/118,411.01
  6. Step 6: Final answer
    x = 65,286.52

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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.