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Finding the Fourth Proportional to 118,269.60, 177,404.40 and 106,605.60

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Solution

The fourth proportional to 118,269.60, 177,404.40 and 106,605.60 is: 159,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,269.60 : 177,404.40 = 106,605.60 : x
  2. Step 2: Convert to fraction form
    118,269.60/177,404.40 = 106,605.60/x
  3. Step 3: Cross multiply
    118,269.60x = 177,404.40 × 106,605.60
  4. Step 4: Simplify right side
    118,269.60x = 18,912,302,504.64
  5. Step 5: Solve for x
    x = 18,912,302,504.64/118,269.60
  6. Step 6: Final answer
    x = 159,908.40

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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.