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Finding the Fourth Proportional to 245,153.95, 367,877.81 and 104,912.71

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Solution

The fourth proportional to 245,153.95, 367,877.81 and 104,912.71 is: 157,431.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,153.95 : 367,877.81 = 104,912.71 : x
  2. Step 2: Convert to fraction form
    245,153.95/367,877.81 = 104,912.71/x
  3. Step 3: Cross multiply
    245,153.95x = 367,877.81 × 104,912.71
  4. Step 4: Simplify right side
    245,153.95x = 38,595,057,995.97
  5. Step 5: Solve for x
    x = 38,595,057,995.97/245,153.95
  6. Step 6: Final answer
    x = 157,431.92

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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.