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Finding the Fourth Proportional to 253,356.24, 379,927.44 and 75,888.48

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Solution

The fourth proportional to 253,356.24, 379,927.44 and 75,888.48 is: 113,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,356.24 : 379,927.44 = 75,888.48 : x
  2. Step 2: Convert to fraction form
    253,356.24/379,927.44 = 75,888.48/x
  3. Step 3: Cross multiply
    253,356.24x = 379,927.44 × 75,888.48
  4. Step 4: Simplify right side
    253,356.24x = 28,832,115,931.89
  5. Step 5: Solve for x
    x = 28,832,115,931.89/253,356.24
  6. Step 6: Final answer
    x = 113,800.69

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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.