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Finding the Fourth Proportional to 326,483.74, 489,670.17 and 148,949.02

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Solution

The fourth proportional to 326,483.74, 489,670.17 and 148,949.02 is: 223,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,483.74 : 489,670.17 = 148,949.02 : x
  2. Step 2: Convert to fraction form
    326,483.74/489,670.17 = 148,949.02/x
  3. Step 3: Cross multiply
    326,483.74x = 489,670.17 × 148,949.02
  4. Step 4: Simplify right side
    326,483.74x = 72,935,891,944.73
  5. Step 5: Solve for x
    x = 72,935,891,944.73/326,483.74
  6. Step 6: Final answer
    x = 223,398.24

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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.