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Finding the Fourth Proportional to 318,160.29, 477,240.44 and 131,166.93

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Solution

The fourth proportional to 318,160.29, 477,240.44 and 131,166.93 is: 196,750.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,160.29 : 477,240.44 = 131,166.93 : x
  2. Step 2: Convert to fraction form
    318,160.29/477,240.44 = 131,166.93/x
  3. Step 3: Cross multiply
    318,160.29x = 477,240.44 × 131,166.93
  4. Step 4: Simplify right side
    318,160.29x = 62,598,162,730.81
  5. Step 5: Solve for x
    x = 62,598,162,730.81/318,160.29
  6. Step 6: Final answer
    x = 196,750.40

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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.