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Finding the Fourth Proportional to 118,485.60, 177,440.40 and 62,959.20

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Solution

The fourth proportional to 118,485.60, 177,440.40 and 62,959.20 is: 94,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,485.60 : 177,440.40 = 62,959.20 : x
  2. Step 2: Convert to fraction form
    118,485.60/177,440.40 = 62,959.20/x
  3. Step 3: Cross multiply
    118,485.60x = 177,440.40 × 62,959.20
  4. Step 4: Simplify right side
    118,485.60x = 11,171,505,631.68
  5. Step 5: Solve for x
    x = 11,171,505,631.68/118,485.60
  6. Step 6: Final answer
    x = 94,285.77

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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.