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Finding the Fourth Proportional to 74,133.79, 111,184 and 34,114.38

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Solution

The fourth proportional to 74,133.79, 111,184 and 34,114.38 is: 51,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,133.79 : 111,184 = 34,114.38 : x
  2. Step 2: Convert to fraction form
    74,133.79/111,184 = 34,114.38/x
  3. Step 3: Cross multiply
    74,133.79x = 111,184 × 34,114.38
  4. Step 4: Simplify right side
    74,133.79x = 3,792,973,225.92
  5. Step 5: Solve for x
    x = 3,792,973,225.92/74,133.79
  6. Step 6: Final answer
    x = 51,163.89

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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.