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Finding the Fourth Proportional to 216,827.80, 325,241.70 and 201,081.40

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Solution

The fourth proportional to 216,827.80, 325,241.70 and 201,081.40 is: 301,622.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,827.80 : 325,241.70 = 201,081.40 : x
  2. Step 2: Convert to fraction form
    216,827.80/325,241.70 = 201,081.40/x
  3. Step 3: Cross multiply
    216,827.80x = 325,241.70 × 201,081.40
  4. Step 4: Simplify right side
    216,827.80x = 65,400,056,374.38
  5. Step 5: Solve for x
    x = 65,400,056,374.38/216,827.80
  6. Step 6: Final answer
    x = 301,622.10

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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.