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Finding the Fourth Proportional to 343,572.54, 515,109.63 and 230,973.42

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Solution

The fourth proportional to 343,572.54, 515,109.63 and 230,973.42 is: 346,292.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,572.54 : 515,109.63 = 230,973.42 : x
  2. Step 2: Convert to fraction form
    343,572.54/515,109.63 = 230,973.42/x
  3. Step 3: Cross multiply
    343,572.54x = 515,109.63 × 230,973.42
  4. Step 4: Simplify right side
    343,572.54x = 118,976,634,414.62
  5. Step 5: Solve for x
    x = 118,976,634,414.62/343,572.54
  6. Step 6: Final answer
    x = 346,292.62

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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.