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Finding the Fourth Proportional to 354,005.92, 488,526.16 and 192,860.64

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Solution

The fourth proportional to 354,005.92, 488,526.16 and 192,860.64 is: 266,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,005.92 : 488,526.16 = 192,860.64 : x
  2. Step 2: Convert to fraction form
    354,005.92/488,526.16 = 192,860.64/x
  3. Step 3: Cross multiply
    354,005.92x = 488,526.16 × 192,860.64
  4. Step 4: Simplify right side
    354,005.92x = 94,217,467,874.34
  5. Step 5: Solve for x
    x = 94,217,467,874.34/354,005.92
  6. Step 6: Final answer
    x = 266,146.59

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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.