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Finding the Fourth Proportional to 123,779.80, 185,731.11 and 48,953.62

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Solution

The fourth proportional to 123,779.80, 185,731.11 and 48,953.62 is: 73,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,779.80 : 185,731.11 = 48,953.62 : x
  2. Step 2: Convert to fraction form
    123,779.80/185,731.11 = 48,953.62/x
  3. Step 3: Cross multiply
    123,779.80x = 185,731.11 × 48,953.62
  4. Step 4: Simplify right side
    123,779.80x = 9,092,210,181.12
  5. Step 5: Solve for x
    x = 9,092,210,181.12/123,779.80
  6. Step 6: Final answer
    x = 73,454.72

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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.