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Finding the Fourth Proportional to 475,216.89, 712,676.11 and 155,295.81

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Solution

The fourth proportional to 475,216.89, 712,676.11 and 155,295.81 is: 232,894.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,216.89 : 712,676.11 = 155,295.81 : x
  2. Step 2: Convert to fraction form
    475,216.89/712,676.11 = 155,295.81/x
  3. Step 3: Cross multiply
    475,216.89x = 712,676.11 × 155,295.81
  4. Step 4: Simplify right side
    475,216.89x = 110,675,613,770.10
  5. Step 5: Solve for x
    x = 110,675,613,770.10/475,216.89
  6. Step 6: Final answer
    x = 232,894.95

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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.