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Finding the Fourth Proportional to 181,672, 272,517.72 and 57,022.72

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Solution

The fourth proportional to 181,672, 272,517.72 and 57,022.72 is: 85,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,672 : 272,517.72 = 57,022.72 : x
  2. Step 2: Convert to fraction form
    181,672/272,517.72 = 57,022.72/x
  3. Step 3: Cross multiply
    181,672x = 272,517.72 × 57,022.72
  4. Step 4: Simplify right side
    181,672x = 15,539,701,642.60
  5. Step 5: Solve for x
    x = 15,539,701,642.60/181,672
  6. Step 6: Final answer
    x = 85,537.13

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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.