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Finding the Fourth Proportional to 243,004.20, 364,506.30 and 236,443.20

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Solution

The fourth proportional to 243,004.20, 364,506.30 and 236,443.20 is: 354,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,004.20 : 364,506.30 = 236,443.20 : x
  2. Step 2: Convert to fraction form
    243,004.20/364,506.30 = 236,443.20/x
  3. Step 3: Cross multiply
    243,004.20x = 364,506.30 × 236,443.20
  4. Step 4: Simplify right side
    243,004.20x = 86,185,035,992.16
  5. Step 5: Solve for x
    x = 86,185,035,992.16/243,004.20
  6. Step 6: Final answer
    x = 354,664.80

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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.