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Finding the Fourth Proportional to 353,526.50, 487,865.71 and 192,380.82

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Solution

The fourth proportional to 353,526.50, 487,865.71 and 192,380.82 is: 265,485.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,526.50 : 487,865.71 = 192,380.82 : x
  2. Step 2: Convert to fraction form
    353,526.50/487,865.71 = 192,380.82/x
  3. Step 3: Cross multiply
    353,526.50x = 487,865.71 × 192,380.82
  4. Step 4: Simplify right side
    353,526.50x = 93,856,005,953.84
  5. Step 5: Solve for x
    x = 93,856,005,953.84/353,526.50
  6. Step 6: Final answer
    x = 265,485.07

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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.