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Finding the Fourth Proportional to 201,645.40, 302,468.10 and 113,071.90

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Solution

The fourth proportional to 201,645.40, 302,468.10 and 113,071.90 is: 169,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,645.40 : 302,468.10 = 113,071.90 : x
  2. Step 2: Convert to fraction form
    201,645.40/302,468.10 = 113,071.90/x
  3. Step 3: Cross multiply
    201,645.40x = 302,468.10 × 113,071.90
  4. Step 4: Simplify right side
    201,645.40x = 34,200,642,756.39
  5. Step 5: Solve for x
    x = 34,200,642,756.39/201,645.40
  6. Step 6: Final answer
    x = 169,607.85

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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.