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Finding the Fourth Proportional to 181,647.90, 272,472.66 and 63,319.05

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Solution

The fourth proportional to 181,647.90, 272,472.66 and 63,319.05 is: 94,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,647.90 : 272,472.66 = 63,319.05 : x
  2. Step 2: Convert to fraction form
    181,647.90/272,472.66 = 63,319.05/x
  3. Step 3: Cross multiply
    181,647.90x = 272,472.66 × 63,319.05
  4. Step 4: Simplify right side
    181,647.90x = 17,252,709,982.17
  5. Step 5: Solve for x
    x = 17,252,709,982.17/181,647.90
  6. Step 6: Final answer
    x = 94,978.86

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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.