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Finding the Fourth Proportional to 262,440, 393,718.32 and 96,228

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Solution

The fourth proportional to 262,440, 393,718.32 and 96,228 is: 144,363.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,440 : 393,718.32 = 96,228 : x
  2. Step 2: Convert to fraction form
    262,440/393,718.32 = 96,228/x
  3. Step 3: Cross multiply
    262,440x = 393,718.32 × 96,228
  4. Step 4: Simplify right side
    262,440x = 37,886,726,496.96
  5. Step 5: Solve for x
    x = 37,886,726,496.96/262,440
  6. Step 6: Final answer
    x = 144,363.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.