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Finding the Fourth Proportional to 307,843.60, 461,722.20 and 97,502.80

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Solution

The fourth proportional to 307,843.60, 461,722.20 and 97,502.80 is: 146,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,843.60 : 461,722.20 = 97,502.80 : x
  2. Step 2: Convert to fraction form
    307,843.60/461,722.20 = 97,502.80/x
  3. Step 3: Cross multiply
    307,843.60x = 461,722.20 × 97,502.80
  4. Step 4: Simplify right side
    307,843.60x = 45,019,207,322.16
  5. Step 5: Solve for x
    x = 45,019,207,322.16/307,843.60
  6. Step 6: Final answer
    x = 146,240.52

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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.