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Finding the Fourth Proportional to 343,684.52, 515,374.54 and 183,721.70

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Solution

The fourth proportional to 343,684.52, 515,374.54 and 183,721.70 is: 275,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,684.52 : 515,374.54 = 183,721.70 : x
  2. Step 2: Convert to fraction form
    343,684.52/515,374.54 = 183,721.70/x
  3. Step 3: Cross multiply
    343,684.52x = 515,374.54 × 183,721.70
  4. Step 4: Simplify right side
    343,684.52x = 94,685,486,625.52
  5. Step 5: Solve for x
    x = 94,685,486,625.52/343,684.52
  6. Step 6: Final answer
    x = 275,501.17

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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.