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Finding the Fourth Proportional to 118,602.93, 177,974.57 and 43,775.20

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Solution

The fourth proportional to 118,602.93, 177,974.57 and 43,775.20 is: 65,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,602.93 : 177,974.57 = 43,775.20 : x
  2. Step 2: Convert to fraction form
    118,602.93/177,974.57 = 43,775.20/x
  3. Step 3: Cross multiply
    118,602.93x = 177,974.57 × 43,775.20
  4. Step 4: Simplify right side
    118,602.93x = 7,790,872,061.17
  5. Step 5: Solve for x
    x = 7,790,872,061.17/118,602.93
  6. Step 6: Final answer
    x = 65,688.70

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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.