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Finding the Fourth Proportional to 115,525.80, 173,288.70 and 36,646.20

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Solution

The fourth proportional to 115,525.80, 173,288.70 and 36,646.20 is: 54,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,525.80 : 173,288.70 = 36,646.20 : x
  2. Step 2: Convert to fraction form
    115,525.80/173,288.70 = 36,646.20/x
  3. Step 3: Cross multiply
    115,525.80x = 173,288.70 × 36,646.20
  4. Step 4: Simplify right side
    115,525.80x = 6,350,372,357.94
  5. Step 5: Solve for x
    x = 6,350,372,357.94/115,525.80
  6. Step 6: Final answer
    x = 54,969.30

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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.