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Finding the Fourth Proportional to 318,157.19, 477,114.59 and 140,567.32

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Solution

The fourth proportional to 318,157.19, 477,114.59 and 140,567.32 is: 210,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,157.19 : 477,114.59 = 140,567.32 : x
  2. Step 2: Convert to fraction form
    318,157.19/477,114.59 = 140,567.32/x
  3. Step 3: Cross multiply
    318,157.19x = 477,114.59 × 140,567.32
  4. Step 4: Simplify right side
    318,157.19x = 67,066,718,546.36
  5. Step 5: Solve for x
    x = 67,066,718,546.36/318,157.19
  6. Step 6: Final answer
    x = 210,797.43

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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.