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Finding the Fourth Proportional to 323,961.48, 486,089.92 and 166,300.74

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Solution

The fourth proportional to 323,961.48, 486,089.92 and 166,300.74 is: 249,526.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,961.48 : 486,089.92 = 166,300.74 : x
  2. Step 2: Convert to fraction form
    323,961.48/486,089.92 = 166,300.74/x
  3. Step 3: Cross multiply
    323,961.48x = 486,089.92 × 166,300.74
  4. Step 4: Simplify right side
    323,961.48x = 80,837,113,402.54
  5. Step 5: Solve for x
    x = 80,837,113,402.54/323,961.48
  6. Step 6: Final answer
    x = 249,526.93

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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.