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Finding the Fourth Proportional to 110,754, 152,787.30 and 72,496.68

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Solution

The fourth proportional to 110,754, 152,787.30 and 72,496.68 is: 100,010.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,754 : 152,787.30 = 72,496.68 : x
  2. Step 2: Convert to fraction form
    110,754/152,787.30 = 72,496.68/x
  3. Step 3: Cross multiply
    110,754x = 152,787.30 × 72,496.68
  4. Step 4: Simplify right side
    110,754x = 11,076,571,996.16
  5. Step 5: Solve for x
    x = 11,076,571,996.16/110,754
  6. Step 6: Final answer
    x = 100,010.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.