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Finding the Fourth Proportional to 168,749.70, 253,124.55 and 164,813.10

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Solution

The fourth proportional to 168,749.70, 253,124.55 and 164,813.10 is: 247,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,749.70 : 253,124.55 = 164,813.10 : x
  2. Step 2: Convert to fraction form
    168,749.70/253,124.55 = 164,813.10/x
  3. Step 3: Cross multiply
    168,749.70x = 253,124.55 × 164,813.10
  4. Step 4: Simplify right side
    168,749.70x = 41,718,241,771.61
  5. Step 5: Solve for x
    x = 41,718,241,771.61/168,749.70
  6. Step 6: Final answer
    x = 247,219.65

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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.