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Finding the Fourth Proportional to 118,485.31, 177,772.32 and 61,523.68

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Solution

The fourth proportional to 118,485.31, 177,772.32 and 61,523.68 is: 92,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,485.31 : 177,772.32 = 61,523.68 : x
  2. Step 2: Convert to fraction form
    118,485.31/177,772.32 = 61,523.68/x
  3. Step 3: Cross multiply
    118,485.31x = 177,772.32 × 61,523.68
  4. Step 4: Simplify right side
    118,485.31x = 10,937,207,328.54
  5. Step 5: Solve for x
    x = 10,937,207,328.54/118,485.31
  6. Step 6: Final answer
    x = 92,308.55

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1.5x scale

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.