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Finding the Fourth Proportional to 293,258.36, 439,133.54 and 203,172.80

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Solution

The fourth proportional to 293,258.36, 439,133.54 and 203,172.80 is: 304,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,258.36 : 439,133.54 = 203,172.80 : x
  2. Step 2: Convert to fraction form
    293,258.36/439,133.54 = 203,172.80/x
  3. Step 3: Cross multiply
    293,258.36x = 439,133.54 × 203,172.80
  4. Step 4: Simplify right side
    293,258.36x = 89,219,990,895.71
  5. Step 5: Solve for x
    x = 89,219,990,895.71/293,258.36
  6. Step 6: Final answer
    x = 304,236.82

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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.