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Finding the Fourth Proportional to 386,955.14, 580,656.81 and 162,295.52

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Solution

The fourth proportional to 386,955.14, 580,656.81 and 162,295.52 is: 243,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,955.14 : 580,656.81 = 162,295.52 : x
  2. Step 2: Convert to fraction form
    386,955.14/580,656.81 = 162,295.52/x
  3. Step 3: Cross multiply
    386,955.14x = 580,656.81 × 162,295.52
  4. Step 4: Simplify right side
    386,955.14x = 94,237,998,920.49
  5. Step 5: Solve for x
    x = 94,237,998,920.49/386,955.14
  6. Step 6: Final answer
    x = 243,537.27

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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.