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Finding the Fourth Proportional to 201,653.40, 302,698.80 and 113,079.90

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Solution

The fourth proportional to 201,653.40, 302,698.80 and 113,079.90 is: 169,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,653.40 : 302,698.80 = 113,079.90 : x
  2. Step 2: Convert to fraction form
    201,653.40/302,698.80 = 113,079.90/x
  3. Step 3: Cross multiply
    201,653.40x = 302,698.80 × 113,079.90
  4. Step 4: Simplify right side
    201,653.40x = 34,229,150,034.12
  5. Step 5: Solve for x
    x = 34,229,150,034.12/201,653.40
  6. Step 6: Final answer
    x = 169,742.49

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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.