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Finding the Fourth Proportional to 655,171.81, 982,763.21 and 181,894.07

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Solution

The fourth proportional to 655,171.81, 982,763.21 and 181,894.07 is: 272,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,171.81 : 982,763.21 = 181,894.07 : x
  2. Step 2: Convert to fraction form
    655,171.81/982,763.21 = 181,894.07/x
  3. Step 3: Cross multiply
    655,171.81x = 982,763.21 × 181,894.07
  4. Step 4: Simplify right side
    655,171.81x = 178,758,803,024.81
  5. Step 5: Solve for x
    x = 178,758,803,024.81/655,171.81
  6. Step 6: Final answer
    x = 272,842.64

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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.