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Finding the Fourth Proportional to 181,691.10, 272,548.80 and 61,746.30

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Solution

The fourth proportional to 181,691.10, 272,548.80 and 61,746.30 is: 92,623.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,691.10 : 272,548.80 = 61,746.30 : x
  2. Step 2: Convert to fraction form
    181,691.10/272,548.80 = 61,746.30/x
  3. Step 3: Cross multiply
    181,691.10x = 272,548.80 × 61,746.30
  4. Step 4: Simplify right side
    181,691.10x = 16,828,879,969.44
  5. Step 5: Solve for x
    x = 16,828,879,969.44/181,691.10
  6. Step 6: Final answer
    x = 92,623.58

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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.