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Finding the Fourth Proportional to 315,705.75, 473,745.45 and 116,166.26

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Solution

The fourth proportional to 315,705.75, 473,745.45 and 116,166.26 is: 174,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,705.75 : 473,745.45 = 116,166.26 : x
  2. Step 2: Convert to fraction form
    315,705.75/473,745.45 = 116,166.26/x
  3. Step 3: Cross multiply
    315,705.75x = 473,745.45 × 116,166.26
  4. Step 4: Simplify right side
    315,705.75x = 55,033,234,749.79
  5. Step 5: Solve for x
    x = 55,033,234,749.79/315,705.75
  6. Step 6: Final answer
    x = 174,318.13

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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.