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Finding the Fourth Proportional to 246,870.69, 370,268.21 and 78,369.02

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Solution

The fourth proportional to 246,870.69, 370,268.21 and 78,369.02 is: 117,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,870.69 : 370,268.21 = 78,369.02 : x
  2. Step 2: Convert to fraction form
    246,870.69/370,268.21 = 78,369.02/x
  3. Step 3: Cross multiply
    246,870.69x = 370,268.21 × 78,369.02
  4. Step 4: Simplify right side
    246,870.69x = 29,017,556,487.94
  5. Step 5: Solve for x
    x = 29,017,556,487.94/246,870.69
  6. Step 6: Final answer
    x = 117,541.52

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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.