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Finding the Fourth Proportional to 445,666.88, 668,363.70 and 161,323.40

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Solution

The fourth proportional to 445,666.88, 668,363.70 and 161,323.40 is: 241,935.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,666.88 : 668,363.70 = 161,323.40 : x
  2. Step 2: Convert to fraction form
    445,666.88/668,363.70 = 161,323.40/x
  3. Step 3: Cross multiply
    445,666.88x = 668,363.70 × 161,323.40
  4. Step 4: Simplify right side
    445,666.88x = 107,822,704,520.58
  5. Step 5: Solve for x
    x = 107,822,704,520.58/445,666.88
  6. Step 6: Final answer
    x = 241,935.65

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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.