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Finding the Fourth Proportional to 115,448.80, 173,313.60 and 73,328.80

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Solution

The fourth proportional to 115,448.80, 173,313.60 and 73,328.80 is: 110,082.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,448.80 : 173,313.60 = 73,328.80 : x
  2. Step 2: Convert to fraction form
    115,448.80/173,313.60 = 73,328.80/x
  3. Step 3: Cross multiply
    115,448.80x = 173,313.60 × 73,328.80
  4. Step 4: Simplify right side
    115,448.80x = 12,708,878,311.68
  5. Step 5: Solve for x
    x = 12,708,878,311.68/115,448.80
  6. Step 6: Final answer
    x = 110,082.38

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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.