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Finding the Fourth Proportional to 445,781.58, 668,670.06 and 108,824.02

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Solution

The fourth proportional to 445,781.58, 668,670.06 and 108,824.02 is: 163,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,781.58 : 668,670.06 = 108,824.02 : x
  2. Step 2: Convert to fraction form
    445,781.58/668,670.06 = 108,824.02/x
  3. Step 3: Cross multiply
    445,781.58x = 668,670.06 × 108,824.02
  4. Step 4: Simplify right side
    445,781.58x = 72,767,363,982.84
  5. Step 5: Solve for x
    x = 72,767,363,982.84/445,781.58
  6. Step 6: Final answer
    x = 163,235.47

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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.