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Finding the Fourth Proportional to 353,889, 488,356.98 and 192,740.52

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Solution

The fourth proportional to 353,889, 488,356.98 and 192,740.52 is: 265,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,889 : 488,356.98 = 192,740.52 : x
  2. Step 2: Convert to fraction form
    353,889/488,356.98 = 192,740.52/x
  3. Step 3: Cross multiply
    353,889x = 488,356.98 × 192,740.52
  4. Step 4: Simplify right side
    353,889x = 94,126,178,270.83
  5. Step 5: Solve for x
    x = 94,126,178,270.83/353,889
  6. Step 6: Final answer
    x = 265,976.56

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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.