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Finding the Fourth Proportional to 354,682.76, 531,925.67 and 98,456.46

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Solution

The fourth proportional to 354,682.76, 531,925.67 and 98,456.46 is: 147,657.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,682.76 : 531,925.67 = 98,456.46 : x
  2. Step 2: Convert to fraction form
    354,682.76/531,925.67 = 98,456.46/x
  3. Step 3: Cross multiply
    354,682.76x = 531,925.67 × 98,456.46
  4. Step 4: Simplify right side
    354,682.76x = 52,371,519,556.38
  5. Step 5: Solve for x
    x = 52,371,519,556.38/354,682.76
  6. Step 6: Final answer
    x = 147,657.36

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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.