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Finding the Fourth Proportional to 319,335.85, 478,461.54 and 192,710.03

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Solution

The fourth proportional to 319,335.85, 478,461.54 and 192,710.03 is: 288,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,335.85 : 478,461.54 = 192,710.03 : x
  2. Step 2: Convert to fraction form
    319,335.85/478,461.54 = 192,710.03/x
  3. Step 3: Cross multiply
    319,335.85x = 478,461.54 × 192,710.03
  4. Step 4: Simplify right side
    319,335.85x = 92,204,336,057.60
  5. Step 5: Solve for x
    x = 92,204,336,057.60/319,335.85
  6. Step 6: Final answer
    x = 288,737.82

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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.