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Finding the Fourth Proportional to 203,482.60, 305,223.90 and 173,415.40

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Solution

The fourth proportional to 203,482.60, 305,223.90 and 173,415.40 is: 260,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,482.60 : 305,223.90 = 173,415.40 : x
  2. Step 2: Convert to fraction form
    203,482.60/305,223.90 = 173,415.40/x
  3. Step 3: Cross multiply
    203,482.60x = 305,223.90 × 173,415.40
  4. Step 4: Simplify right side
    203,482.60x = 52,930,524,708.06
  5. Step 5: Solve for x
    x = 52,930,524,708.06/203,482.60
  6. Step 6: Final answer
    x = 260,123.10

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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.