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Finding the Fourth Proportional to 216,483.91, 298,734.92 and 119,681.97

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Solution

The fourth proportional to 216,483.91, 298,734.92 and 119,681.97 is: 165,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,483.91 : 298,734.92 = 119,681.97 : x
  2. Step 2: Convert to fraction form
    216,483.91/298,734.92 = 119,681.97/x
  3. Step 3: Cross multiply
    216,483.91x = 298,734.92 × 119,681.97
  4. Step 4: Simplify right side
    216,483.91x = 35,753,183,733.39
  5. Step 5: Solve for x
    x = 35,753,183,733.39/216,483.91
  6. Step 6: Final answer
    x = 165,154.00

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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.