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Finding the Fourth Proportional to 162,912.70, 244,369.05 and 57,742.30

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Solution

The fourth proportional to 162,912.70, 244,369.05 and 57,742.30 is: 86,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,912.70 : 244,369.05 = 57,742.30 : x
  2. Step 2: Convert to fraction form
    162,912.70/244,369.05 = 57,742.30/x
  3. Step 3: Cross multiply
    162,912.70x = 244,369.05 × 57,742.30
  4. Step 4: Simplify right side
    162,912.70x = 14,110,430,995.82
  5. Step 5: Solve for x
    x = 14,110,430,995.82/162,912.70
  6. Step 6: Final answer
    x = 86,613.45

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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.