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Finding the Fourth Proportional to 353,038.06, 487,195.78 and 191,893.49

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Solution

The fourth proportional to 353,038.06, 487,195.78 and 191,893.49 is: 264,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,038.06 : 487,195.78 = 191,893.49 : x
  2. Step 2: Convert to fraction form
    353,038.06/487,195.78 = 191,893.49/x
  3. Step 3: Cross multiply
    353,038.06x = 487,195.78 × 191,893.49
  4. Step 4: Simplify right side
    353,038.06x = 93,489,696,101.49
  5. Step 5: Solve for x
    x = 93,489,696,101.49/353,038.06
  6. Step 6: Final answer
    x = 264,814.78

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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.