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Finding the Fourth Proportional to 74,438.84, 102,737.85 and 54,362.18

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Solution

The fourth proportional to 74,438.84, 102,737.85 and 54,362.18 is: 75,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,438.84 : 102,737.85 = 54,362.18 : x
  2. Step 2: Convert to fraction form
    74,438.84/102,737.85 = 54,362.18/x
  3. Step 3: Cross multiply
    74,438.84x = 102,737.85 × 54,362.18
  4. Step 4: Simplify right side
    74,438.84x = 5,585,053,494.51
  5. Step 5: Solve for x
    x = 5,585,053,494.51/74,438.84
  6. Step 6: Final answer
    x = 75,028.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.