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Finding the Fourth Proportional to 246,886.51, 340,850.21 and 156,320.10

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Solution

The fourth proportional to 246,886.51, 340,850.21 and 156,320.10 is: 215,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,886.51 : 340,850.21 = 156,320.10 : x
  2. Step 2: Convert to fraction form
    246,886.51/340,850.21 = 156,320.10/x
  3. Step 3: Cross multiply
    246,886.51x = 340,850.21 × 156,320.10
  4. Step 4: Simplify right side
    246,886.51x = 53,281,739,968.56
  5. Step 5: Solve for x
    x = 53,281,739,968.56/246,886.51
  6. Step 6: Final answer
    x = 215,814.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.