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Finding the Fourth Proportional to 141,338.64, 212,015.22 and 36,158.52

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Solution

The fourth proportional to 141,338.64, 212,015.22 and 36,158.52 is: 54,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,338.64 : 212,015.22 = 36,158.52 : x
  2. Step 2: Convert to fraction form
    141,338.64/212,015.22 = 36,158.52/x
  3. Step 3: Cross multiply
    141,338.64x = 212,015.22 × 36,158.52
  4. Step 4: Simplify right side
    141,338.64x = 7,666,156,572.67
  5. Step 5: Solve for x
    x = 7,666,156,572.67/141,338.64
  6. Step 6: Final answer
    x = 54,239.64

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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.