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Finding the Fourth Proportional to 82,827.60, 124,241.40 and 27,423.60

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Solution

The fourth proportional to 82,827.60, 124,241.40 and 27,423.60 is: 41,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,827.60 : 124,241.40 = 27,423.60 : x
  2. Step 2: Convert to fraction form
    82,827.60/124,241.40 = 27,423.60/x
  3. Step 3: Cross multiply
    82,827.60x = 124,241.40 × 27,423.60
  4. Step 4: Simplify right side
    82,827.60x = 3,407,146,457.04
  5. Step 5: Solve for x
    x = 3,407,146,457.04/82,827.60
  6. Step 6: Final answer
    x = 41,135.40

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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.