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Finding the Fourth Proportional to 243,207.60, 364,811.40 and 238,023.60

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Solution

The fourth proportional to 243,207.60, 364,811.40 and 238,023.60 is: 357,035.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,207.60 : 364,811.40 = 238,023.60 : x
  2. Step 2: Convert to fraction form
    243,207.60/364,811.40 = 238,023.60/x
  3. Step 3: Cross multiply
    243,207.60x = 364,811.40 × 238,023.60
  4. Step 4: Simplify right side
    243,207.60x = 86,833,722,749.04
  5. Step 5: Solve for x
    x = 86,833,722,749.04/243,207.60
  6. Step 6: Final answer
    x = 357,035.40

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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.