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Finding the Fourth Proportional to 146,560.80, 219,679.20 and 57,784.80

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Solution

The fourth proportional to 146,560.80, 219,679.20 and 57,784.80 is: 86,613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,560.80 : 219,679.20 = 57,784.80 : x
  2. Step 2: Convert to fraction form
    146,560.80/219,679.20 = 57,784.80/x
  3. Step 3: Cross multiply
    146,560.80x = 219,679.20 × 57,784.80
  4. Step 4: Simplify right side
    146,560.80x = 12,694,118,636.16
  5. Step 5: Solve for x
    x = 12,694,118,636.16/146,560.80
  6. Step 6: Final answer
    x = 86,613.33

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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.