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Finding the Fourth Proportional to 134,433.65, 201,775.22 and 67,920.50

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Solution

The fourth proportional to 134,433.65, 201,775.22 and 67,920.50 is: 101,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,433.65 : 201,775.22 = 67,920.50 : x
  2. Step 2: Convert to fraction form
    134,433.65/201,775.22 = 67,920.50/x
  3. Step 3: Cross multiply
    134,433.65x = 201,775.22 × 67,920.50
  4. Step 4: Simplify right side
    134,433.65x = 13,704,673,830.01
  5. Step 5: Solve for x
    x = 13,704,673,830.01/134,433.65
  6. Step 6: Final answer
    x = 101,943.78

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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.