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Finding the Fourth Proportional to 140,614.56, 210,999.60 and 57,566.88

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Solution

The fourth proportional to 140,614.56, 210,999.60 and 57,566.88 is: 86,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,614.56 : 210,999.60 = 57,566.88 : x
  2. Step 2: Convert to fraction form
    140,614.56/210,999.60 = 57,566.88/x
  3. Step 3: Cross multiply
    140,614.56x = 210,999.60 × 57,566.88
  4. Step 4: Simplify right side
    140,614.56x = 12,146,588,653.25
  5. Step 5: Solve for x
    x = 12,146,588,653.25/140,614.56
  6. Step 6: Final answer
    x = 86,382.15

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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.