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Finding the Fourth Proportional to 210,703.32, 315,493.68 and 164,651.76

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Solution

The fourth proportional to 210,703.32, 315,493.68 and 164,651.76 is: 246,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,703.32 : 315,493.68 = 164,651.76 : x
  2. Step 2: Convert to fraction form
    210,703.32/315,493.68 = 164,651.76/x
  3. Step 3: Cross multiply
    210,703.32x = 315,493.68 × 164,651.76
  4. Step 4: Simplify right side
    210,703.32x = 51,946,589,680.88
  5. Step 5: Solve for x
    x = 51,946,589,680.88/210,703.32
  6. Step 6: Final answer
    x = 246,539.02

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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.