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Finding the Fourth Proportional to 101,900.84, 152,652.42 and 66,733.88

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Solution

The fourth proportional to 101,900.84, 152,652.42 and 66,733.88 is: 99,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,900.84 : 152,652.42 = 66,733.88 : x
  2. Step 2: Convert to fraction form
    101,900.84/152,652.42 = 66,733.88/x
  3. Step 3: Cross multiply
    101,900.84x = 152,652.42 × 66,733.88
  4. Step 4: Simplify right side
    101,900.84x = 10,187,087,514.73
  5. Step 5: Solve for x
    x = 10,187,087,514.73/101,900.84
  6. Step 6: Final answer
    x = 99,970.60

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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.