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Finding the Fourth Proportional to 201,738.60, 302,607.90 and 134,087.40

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Solution

The fourth proportional to 201,738.60, 302,607.90 and 134,087.40 is: 201,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,738.60 : 302,607.90 = 134,087.40 : x
  2. Step 2: Convert to fraction form
    201,738.60/302,607.90 = 134,087.40/x
  3. Step 3: Cross multiply
    201,738.60x = 302,607.90 × 134,087.40
  4. Step 4: Simplify right side
    201,738.60x = 40,575,906,530.46
  5. Step 5: Solve for x
    x = 40,575,906,530.46/201,738.60
  6. Step 6: Final answer
    x = 201,131.10

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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.