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Finding the Fourth Proportional to 141,813.10, 212,719.65 and 133,065.10

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Solution

The fourth proportional to 141,813.10, 212,719.65 and 133,065.10 is: 199,597.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,813.10 : 212,719.65 = 133,065.10 : x
  2. Step 2: Convert to fraction form
    141,813.10/212,719.65 = 133,065.10/x
  3. Step 3: Cross multiply
    141,813.10x = 212,719.65 × 133,065.10
  4. Step 4: Simplify right side
    141,813.10x = 28,305,561,499.22
  5. Step 5: Solve for x
    x = 28,305,561,499.22/141,813.10
  6. Step 6: Final answer
    x = 199,597.65

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1.5x scale

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.