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Finding the Fourth Proportional to 181,638.86, 272,459.30 and 63,309.60

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Solution

The fourth proportional to 181,638.86, 272,459.30 and 63,309.60 is: 94,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,638.86 : 272,459.30 = 63,309.60 : x
  2. Step 2: Convert to fraction form
    181,638.86/272,459.30 = 63,309.60/x
  3. Step 3: Cross multiply
    181,638.86x = 272,459.30 × 63,309.60
  4. Step 4: Simplify right side
    181,638.86x = 17,249,288,982.73
  5. Step 5: Solve for x
    x = 17,249,288,982.73/181,638.86
  6. Step 6: Final answer
    x = 94,964.75

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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.