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Finding the Fourth Proportional to 655,135.90, 982,703.54 and 181,821.11

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Solution

The fourth proportional to 655,135.90, 982,703.54 and 181,821.11 is: 272,731.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,135.90 : 982,703.54 = 181,821.11 : x
  2. Step 2: Convert to fraction form
    655,135.90/982,703.54 = 181,821.11/x
  3. Step 3: Cross multiply
    655,135.90x = 982,703.54 × 181,821.11
  4. Step 4: Simplify right side
    655,135.90x = 178,676,243,984.76
  5. Step 5: Solve for x
    x = 178,676,243,984.76/655,135.90
  6. Step 6: Final answer
    x = 272,731.57

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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.