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Finding the Fourth Proportional to 201,631.70, 302,447.55 and 164,306.90

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Solution

The fourth proportional to 201,631.70, 302,447.55 and 164,306.90 is: 246,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,631.70 : 302,447.55 = 164,306.90 : x
  2. Step 2: Convert to fraction form
    201,631.70/302,447.55 = 164,306.90/x
  3. Step 3: Cross multiply
    201,631.70x = 302,447.55 × 164,306.90
  4. Step 4: Simplify right side
    201,631.70x = 49,694,219,353.10
  5. Step 5: Solve for x
    x = 49,694,219,353.10/201,631.70
  6. Step 6: Final answer
    x = 246,460.35

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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.