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Finding the Fourth Proportional to 201,946.40, 302,919.60 and 96,711.20

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Solution

The fourth proportional to 201,946.40, 302,919.60 and 96,711.20 is: 145,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,946.40 : 302,919.60 = 96,711.20 : x
  2. Step 2: Convert to fraction form
    201,946.40/302,919.60 = 96,711.20/x
  3. Step 3: Cross multiply
    201,946.40x = 302,919.60 × 96,711.20
  4. Step 4: Simplify right side
    201,946.40x = 29,295,718,019.52
  5. Step 5: Solve for x
    x = 29,295,718,019.52/201,946.40
  6. Step 6: Final answer
    x = 145,066.80

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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.