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Finding the Fourth Proportional to 141,886.89, 212,850.79 and 47,084.90

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Solution

The fourth proportional to 141,886.89, 212,850.79 and 47,084.90 is: 70,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,886.89 : 212,850.79 = 47,084.90 : x
  2. Step 2: Convert to fraction form
    141,886.89/212,850.79 = 47,084.90/x
  3. Step 3: Cross multiply
    141,886.89x = 212,850.79 × 47,084.90
  4. Step 4: Simplify right side
    141,886.89x = 10,022,056,980.10
  5. Step 5: Solve for x
    x = 10,022,056,980.10/141,886.89
  6. Step 6: Final answer
    x = 70,634.13

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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.