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Finding the Fourth Proportional to 141,405.40, 212,108.10 and 134,844.40

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Solution

The fourth proportional to 141,405.40, 212,108.10 and 134,844.40 is: 202,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,405.40 : 212,108.10 = 134,844.40 : x
  2. Step 2: Convert to fraction form
    141,405.40/212,108.10 = 134,844.40/x
  3. Step 3: Cross multiply
    141,405.40x = 212,108.10 × 134,844.40
  4. Step 4: Simplify right side
    141,405.40x = 28,601,589,479.64
  5. Step 5: Solve for x
    x = 28,601,589,479.64/141,405.40
  6. Step 6: Final answer
    x = 202,266.60

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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.