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Finding the Fourth Proportional to 318,161.10, 477,140.22 and 104,889.26

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Solution

The fourth proportional to 318,161.10, 477,140.22 and 104,889.26 is: 157,300.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,161.10 : 477,140.22 = 104,889.26 : x
  2. Step 2: Convert to fraction form
    318,161.10/477,140.22 = 104,889.26/x
  3. Step 3: Cross multiply
    318,161.10x = 477,140.22 × 104,889.26
  4. Step 4: Simplify right side
    318,161.10x = 50,046,885,784.89
  5. Step 5: Solve for x
    x = 50,046,885,784.89/318,161.10
  6. Step 6: Final answer
    x = 157,300.46

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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.