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Finding the Fourth Proportional to 141,775.56, 212,693.85 and 70,736.40

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Solution

The fourth proportional to 141,775.56, 212,693.85 and 70,736.40 is: 106,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,775.56 : 212,693.85 = 70,736.40 : x
  2. Step 2: Convert to fraction form
    141,775.56/212,693.85 = 70,736.40/x
  3. Step 3: Cross multiply
    141,775.56x = 212,693.85 × 70,736.40
  4. Step 4: Simplify right side
    141,775.56x = 15,045,197,251.14
  5. Step 5: Solve for x
    x = 15,045,197,251.14/141,775.56
  6. Step 6: Final answer
    x = 106,119.82

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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.