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Finding the Fourth Proportional to 495,900.45, 743,850.68 and 121,923.45

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Solution

The fourth proportional to 495,900.45, 743,850.68 and 121,923.45 is: 182,885.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,900.45 : 743,850.68 = 121,923.45 : x
  2. Step 2: Convert to fraction form
    495,900.45/743,850.68 = 121,923.45/x
  3. Step 3: Cross multiply
    495,900.45x = 743,850.68 × 121,923.45
  4. Step 4: Simplify right side
    495,900.45x = 90,692,840,580.83
  5. Step 5: Solve for x
    x = 90,692,840,580.83/495,900.45
  6. Step 6: Final answer
    x = 182,885.18

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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.