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Finding the Fourth Proportional to 193,415.40, 290,123.10 and 173,076.30

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Solution

The fourth proportional to 193,415.40, 290,123.10 and 173,076.30 is: 259,614.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,415.40 : 290,123.10 = 173,076.30 : x
  2. Step 2: Convert to fraction form
    193,415.40/290,123.10 = 173,076.30/x
  3. Step 3: Cross multiply
    193,415.40x = 290,123.10 × 173,076.30
  4. Step 4: Simplify right side
    193,415.40x = 50,213,432,692.53
  5. Step 5: Solve for x
    x = 50,213,432,692.53/193,415.40
  6. Step 6: Final answer
    x = 259,614.45

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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.