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Finding the Fourth Proportional to 115,485.80, 173,228.70 and 95,802.80

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Solution

The fourth proportional to 115,485.80, 173,228.70 and 95,802.80 is: 143,704.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,485.80 : 173,228.70 = 95,802.80 : x
  2. Step 2: Convert to fraction form
    115,485.80/173,228.70 = 95,802.80/x
  3. Step 3: Cross multiply
    115,485.80x = 173,228.70 × 95,802.80
  4. Step 4: Simplify right side
    115,485.80x = 16,595,794,500.36
  5. Step 5: Solve for x
    x = 16,595,794,500.36/115,485.80
  6. Step 6: Final answer
    x = 143,704.20

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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.