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Finding the Fourth Proportional to 462,218.80, 693,328.20 and 163,037.20

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Solution

The fourth proportional to 462,218.80, 693,328.20 and 163,037.20 is: 244,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,218.80 : 693,328.20 = 163,037.20 : x
  2. Step 2: Convert to fraction form
    462,218.80/693,328.20 = 163,037.20/x
  3. Step 3: Cross multiply
    462,218.80x = 693,328.20 × 163,037.20
  4. Step 4: Simplify right side
    462,218.80x = 113,038,288,409.04
  5. Step 5: Solve for x
    x = 113,038,288,409.04/462,218.80
  6. Step 6: Final answer
    x = 244,555.80

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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.