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Finding the Fourth Proportional to 258,037.84, 356,091.96 and 144,860.80

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Solution

The fourth proportional to 258,037.84, 356,091.96 and 144,860.80 is: 199,907.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,037.84 : 356,091.96 = 144,860.80 : x
  2. Step 2: Convert to fraction form
    258,037.84/356,091.96 = 144,860.80/x
  3. Step 3: Cross multiply
    258,037.84x = 356,091.96 × 144,860.80
  4. Step 4: Simplify right side
    258,037.84x = 51,583,766,199.17
  5. Step 5: Solve for x
    x = 51,583,766,199.17/258,037.84
  6. Step 6: Final answer
    x = 199,907.76

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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.