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Finding the Fourth Proportional to 225,317.29, 337,854.70 and 90,313.60

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Solution

The fourth proportional to 225,317.29, 337,854.70 and 90,313.60 is: 135,421.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,317.29 : 337,854.70 = 90,313.60 : x
  2. Step 2: Convert to fraction form
    225,317.29/337,854.70 = 90,313.60/x
  3. Step 3: Cross multiply
    225,317.29x = 337,854.70 × 90,313.60
  4. Step 4: Simplify right side
    225,317.29x = 30,512,874,233.92
  5. Step 5: Solve for x
    x = 30,512,874,233.92/225,317.29
  6. Step 6: Final answer
    x = 135,421.81

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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.