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Finding the Fourth Proportional to 307,922.40, 461,948.40 and 97,581.60

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Solution

The fourth proportional to 307,922.40, 461,948.40 and 97,581.60 is: 146,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,922.40 : 461,948.40 = 97,581.60 : x
  2. Step 2: Convert to fraction form
    307,922.40/461,948.40 = 97,581.60/x
  3. Step 3: Cross multiply
    307,922.40x = 461,948.40 × 97,581.60
  4. Step 4: Simplify right side
    307,922.40x = 45,077,663,989.44
  5. Step 5: Solve for x
    x = 45,077,663,989.44/307,922.40
  6. Step 6: Final answer
    x = 146,392.94

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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.