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Finding the Fourth Proportional to 141,879.79, 212,773.38 and 47,084.51

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Solution

The fourth proportional to 141,879.79, 212,773.38 and 47,084.51 is: 70,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,879.79 : 212,773.38 = 47,084.51 : x
  2. Step 2: Convert to fraction form
    141,879.79/212,773.38 = 47,084.51/x
  3. Step 3: Cross multiply
    141,879.79x = 212,773.38 × 47,084.51
  4. Step 4: Simplify right side
    141,879.79x = 10,018,330,338.34
  5. Step 5: Solve for x
    x = 10,018,330,338.34/141,879.79
  6. Step 6: Final answer
    x = 70,611.40

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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.