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Finding the Fourth Proportional to 462,183.40, 693,275.10 and 162,661.60

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Solution

The fourth proportional to 462,183.40, 693,275.10 and 162,661.60 is: 243,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,183.40 : 693,275.10 = 162,661.60 : x
  2. Step 2: Convert to fraction form
    462,183.40/693,275.10 = 162,661.60/x
  3. Step 3: Cross multiply
    462,183.40x = 693,275.10 × 162,661.60
  4. Step 4: Simplify right side
    462,183.40x = 112,769,237,006.16
  5. Step 5: Solve for x
    x = 112,769,237,006.16/462,183.40
  6. Step 6: Final answer
    x = 243,992.40

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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.