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Finding the Fourth Proportional to 230,995.42, 346,493.10 and 86,928.32

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Solution

The fourth proportional to 230,995.42, 346,493.10 and 86,928.32 is: 130,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,995.42 : 346,493.10 = 86,928.32 : x
  2. Step 2: Convert to fraction form
    230,995.42/346,493.10 = 86,928.32/x
  3. Step 3: Cross multiply
    230,995.42x = 346,493.10 × 86,928.32
  4. Step 4: Simplify right side
    230,995.42x = 30,120,063,074.59
  5. Step 5: Solve for x
    x = 30,120,063,074.59/230,995.42
  6. Step 6: Final answer
    x = 130,392.47

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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.