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Finding the Fourth Proportional to 353,187.84, 487,404.71 and 192,043.31

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Solution

The fourth proportional to 353,187.84, 487,404.71 and 192,043.31 is: 265,022.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,187.84 : 487,404.71 = 192,043.31 : x
  2. Step 2: Convert to fraction form
    353,187.84/487,404.71 = 192,043.31/x
  3. Step 3: Cross multiply
    353,187.84x = 487,404.71 × 192,043.31
  4. Step 4: Simplify right side
    353,187.84x = 93,602,811,140.91
  5. Step 5: Solve for x
    x = 93,602,811,140.91/353,187.84
  6. Step 6: Final answer
    x = 265,022.74

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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.