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Finding the Fourth Proportional to 140,573.72, 210,860.58 and 40,733.98

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Solution

The fourth proportional to 140,573.72, 210,860.58 and 40,733.98 is: 61,100.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,573.72 : 210,860.58 = 40,733.98 : x
  2. Step 2: Convert to fraction form
    140,573.72/210,860.58 = 40,733.98/x
  3. Step 3: Cross multiply
    140,573.72x = 210,860.58 × 40,733.98
  4. Step 4: Simplify right side
    140,573.72x = 8,589,190,648.51
  5. Step 5: Solve for x
    x = 8,589,190,648.51/140,573.72
  6. Step 6: Final answer
    x = 61,100.97

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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.