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Finding the Fourth Proportional to 140,810.88, 211,249.28 and 40,973.28

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Solution

The fourth proportional to 140,810.88, 211,249.28 and 40,973.28 is: 61,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,810.88 : 211,249.28 = 40,973.28 : x
  2. Step 2: Convert to fraction form
    140,810.88/211,249.28 = 40,973.28/x
  3. Step 3: Cross multiply
    140,810.88x = 211,249.28 × 40,973.28
  4. Step 4: Simplify right side
    140,810.88x = 8,655,575,899.24
  5. Step 5: Solve for x
    x = 8,655,575,899.24/140,810.88
  6. Step 6: Final answer
    x = 61,469.51

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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.