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Finding the Fourth Proportional to 234,972, 352,476.51 and 66,489.63

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Solution

The fourth proportional to 234,972, 352,476.51 and 66,489.63 is: 99,739.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,972 : 352,476.51 = 66,489.63 : x
  2. Step 2: Convert to fraction form
    234,972/352,476.51 = 66,489.63/x
  3. Step 3: Cross multiply
    234,972x = 352,476.51 × 66,489.63
  4. Step 4: Simplify right side
    234,972x = 23,436,032,733.59
  5. Step 5: Solve for x
    x = 23,436,032,733.59/234,972
  6. Step 6: Final answer
    x = 99,739.68

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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.