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Finding the Fourth Proportional to 77,857.60, 116,613.60 and 64,033.60

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Solution

The fourth proportional to 77,857.60, 116,613.60 and 64,033.60 is: 95,908.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,857.60 : 116,613.60 = 64,033.60 : x
  2. Step 2: Convert to fraction form
    77,857.60/116,613.60 = 64,033.60/x
  3. Step 3: Cross multiply
    77,857.60x = 116,613.60 × 64,033.60
  4. Step 4: Simplify right side
    77,857.60x = 7,467,188,616.96
  5. Step 5: Solve for x
    x = 7,467,188,616.96/77,857.60
  6. Step 6: Final answer
    x = 95,908.28

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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.