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Finding the Fourth Proportional to 253,060.84, 379,590.96 and 103,371.48

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Solution

The fourth proportional to 253,060.84, 379,590.96 and 103,371.48 is: 155,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,060.84 : 379,590.96 = 103,371.48 : x
  2. Step 2: Convert to fraction form
    253,060.84/379,590.96 = 103,371.48/x
  3. Step 3: Cross multiply
    253,060.84x = 379,590.96 × 103,371.48
  4. Step 4: Simplify right side
    253,060.84x = 39,238,879,329.82
  5. Step 5: Solve for x
    x = 39,238,879,329.82/253,060.84
  6. Step 6: Final answer
    x = 155,057.10

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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.