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Finding the Fourth Proportional to 110,486.34, 165,864.51 and 72,928.26

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Solution

The fourth proportional to 110,486.34, 165,864.51 and 72,928.26 is: 109,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,486.34 : 165,864.51 = 72,928.26 : x
  2. Step 2: Convert to fraction form
    110,486.34/165,864.51 = 72,928.26/x
  3. Step 3: Cross multiply
    110,486.34x = 165,864.51 × 72,928.26
  4. Step 4: Simplify right side
    110,486.34x = 12,096,210,110.05
  5. Step 5: Solve for x
    x = 12,096,210,110.05/110,486.34
  6. Step 6: Final answer
    x = 109,481.50

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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.