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Finding the Fourth Proportional to 612,214.50, 918,329.43 and 162,932.60

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Solution

The fourth proportional to 612,214.50, 918,329.43 and 162,932.60 is: 244,400.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,214.50 : 918,329.43 = 162,932.60 : x
  2. Step 2: Convert to fraction form
    612,214.50/918,329.43 = 162,932.60/x
  3. Step 3: Cross multiply
    612,214.50x = 918,329.43 × 162,932.60
  4. Step 4: Simplify right side
    612,214.50x = 149,625,797,094.77
  5. Step 5: Solve for x
    x = 149,625,797,094.77/612,214.50
  6. Step 6: Final answer
    x = 244,400.94

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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.