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Finding the Fourth Proportional to 242,827.60, 364,241.40 and 76,615.60

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Solution

The fourth proportional to 242,827.60, 364,241.40 and 76,615.60 is: 114,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,827.60 : 364,241.40 = 76,615.60 : x
  2. Step 2: Convert to fraction form
    242,827.60/364,241.40 = 76,615.60/x
  3. Step 3: Cross multiply
    242,827.60x = 364,241.40 × 76,615.60
  4. Step 4: Simplify right side
    242,827.60x = 27,906,573,405.84
  5. Step 5: Solve for x
    x = 27,906,573,405.84/242,827.60
  6. Step 6: Final answer
    x = 114,923.40

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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.