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Finding the Fourth Proportional to 189,329.32, 283,911.12 and 70,917.64

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Solution

The fourth proportional to 189,329.32, 283,911.12 and 70,917.64 is: 106,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,329.32 : 283,911.12 = 70,917.64 : x
  2. Step 2: Convert to fraction form
    189,329.32/283,911.12 = 70,917.64/x
  3. Step 3: Cross multiply
    189,329.32x = 283,911.12 × 70,917.64
  4. Step 4: Simplify right side
    189,329.32x = 20,134,306,600.16
  5. Step 5: Solve for x
    x = 20,134,306,600.16/189,329.32
  6. Step 6: Final answer
    x = 106,345.42

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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.