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Finding the Fourth Proportional to 74,750.93, 112,178.94 and 67,604.51

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Solution

The fourth proportional to 74,750.93, 112,178.94 and 67,604.51 is: 101,454.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,750.93 : 112,178.94 = 67,604.51 : x
  2. Step 2: Convert to fraction form
    74,750.93/112,178.94 = 67,604.51/x
  3. Step 3: Cross multiply
    74,750.93x = 112,178.94 × 67,604.51
  4. Step 4: Simplify right side
    74,750.93x = 7,583,802,271.02
  5. Step 5: Solve for x
    x = 7,583,802,271.02/74,750.93
  6. Step 6: Final answer
    x = 101,454.29

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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.