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Finding the Fourth Proportional to 318,169.74, 477,153.12 and 104,897.91

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Solution

The fourth proportional to 318,169.74, 477,153.12 and 104,897.91 is: 157,313.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,169.74 : 477,153.12 = 104,897.91 : x
  2. Step 2: Convert to fraction form
    318,169.74/477,153.12 = 104,897.91/x
  3. Step 3: Cross multiply
    318,169.74x = 477,153.12 × 104,897.91
  4. Step 4: Simplify right side
    318,169.74x = 50,052,365,037.98
  5. Step 5: Solve for x
    x = 50,052,365,037.98/318,169.74
  6. Step 6: Final answer
    x = 157,313.40

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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.