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Finding the Fourth Proportional to 190,436.74, 285,692.48 and 70,494.74

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Solution

The fourth proportional to 190,436.74, 285,692.48 and 70,494.74 is: 105,755.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,436.74 : 285,692.48 = 70,494.74 : x
  2. Step 2: Convert to fraction form
    190,436.74/285,692.48 = 70,494.74/x
  3. Step 3: Cross multiply
    190,436.74x = 285,692.48 × 70,494.74
  4. Step 4: Simplify right side
    190,436.74x = 20,139,817,097.56
  5. Step 5: Solve for x
    x = 20,139,817,097.56/190,436.74
  6. Step 6: Final answer
    x = 105,755.94

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1.5x scale

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.