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Finding the Fourth Proportional to 318,051.45, 477,077.45 and 149,448.11

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Solution

The fourth proportional to 318,051.45, 477,077.45 and 149,448.11 is: 224,172.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,051.45 : 477,077.45 = 149,448.11 : x
  2. Step 2: Convert to fraction form
    318,051.45/477,077.45 = 149,448.11/x
  3. Step 3: Cross multiply
    318,051.45x = 477,077.45 × 149,448.11
  4. Step 4: Simplify right side
    318,051.45x = 71,298,320,093.49
  5. Step 5: Solve for x
    x = 71,298,320,093.49/318,051.45
  6. Step 6: Final answer
    x = 224,172.28

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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.