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Finding the Fourth Proportional to 110,754.68, 152,788.25 and 72,497.39

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Solution

The fourth proportional to 110,754.68, 152,788.25 and 72,497.39 is: 100,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,754.68 : 152,788.25 = 72,497.39 : x
  2. Step 2: Convert to fraction form
    110,754.68/152,788.25 = 72,497.39/x
  3. Step 3: Cross multiply
    110,754.68x = 152,788.25 × 72,497.39
  4. Step 4: Simplify right side
    110,754.68x = 11,076,748,985.18
  5. Step 5: Solve for x
    x = 11,076,748,985.18/110,754.68
  6. Step 6: Final answer
    x = 100,011.57

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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.