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Finding the Fourth Proportional to 194,471.70, 291,707.55 and 105,998.10

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Solution

The fourth proportional to 194,471.70, 291,707.55 and 105,998.10 is: 158,997.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,471.70 : 291,707.55 = 105,998.10 : x
  2. Step 2: Convert to fraction form
    194,471.70/291,707.55 = 105,998.10/x
  3. Step 3: Cross multiply
    194,471.70x = 291,707.55 × 105,998.10
  4. Step 4: Simplify right side
    194,471.70x = 30,920,446,055.66
  5. Step 5: Solve for x
    x = 30,920,446,055.66/194,471.70
  6. Step 6: Final answer
    x = 158,997.15

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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.