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Finding the Fourth Proportional to 118,732, 177,942.48 and 66,166.24

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Solution

The fourth proportional to 118,732, 177,942.48 and 66,166.24 is: 99,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,732 : 177,942.48 = 66,166.24 : x
  2. Step 2: Convert to fraction form
    118,732/177,942.48 = 66,166.24/x
  3. Step 3: Cross multiply
    118,732x = 177,942.48 × 66,166.24
  4. Step 4: Simplify right side
    118,732x = 11,773,784,837.88
  5. Step 5: Solve for x
    x = 11,773,784,837.88/118,732
  6. Step 6: Final answer
    x = 99,162.69

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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.