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Finding the Fourth Proportional to 100,554.84, 150,652.35 and 67,173.84

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Solution

The fourth proportional to 100,554.84, 150,652.35 and 67,173.84 is: 100,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,554.84 : 150,652.35 = 67,173.84 : x
  2. Step 2: Convert to fraction form
    100,554.84/150,652.35 = 67,173.84/x
  3. Step 3: Cross multiply
    100,554.84x = 150,652.35 × 67,173.84
  4. Step 4: Simplify right side
    100,554.84x = 10,119,896,854.52
  5. Step 5: Solve for x
    x = 10,119,896,854.52/100,554.84
  6. Step 6: Final answer
    x = 100,640.57

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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.