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Finding the Fourth Proportional to 252,991.88, 349,165.86 and 152,387.72

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Solution

The fourth proportional to 252,991.88, 349,165.86 and 152,387.72 is: 210,317.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,991.88 : 349,165.86 = 152,387.72 : x
  2. Step 2: Convert to fraction form
    252,991.88/349,165.86 = 152,387.72/x
  3. Step 3: Cross multiply
    252,991.88x = 349,165.86 × 152,387.72
  4. Step 4: Simplify right side
    252,991.88x = 53,208,589,307.24
  5. Step 5: Solve for x
    x = 53,208,589,307.24/252,991.88
  6. Step 6: Final answer
    x = 210,317.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.