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Finding the Fourth Proportional to 115,421.52, 173,130.12 and 36,540.48

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Solution

The fourth proportional to 115,421.52, 173,130.12 and 36,540.48 is: 54,810.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,421.52 : 173,130.12 = 36,540.48 : x
  2. Step 2: Convert to fraction form
    115,421.52/173,130.12 = 36,540.48/x
  3. Step 3: Cross multiply
    115,421.52x = 173,130.12 × 36,540.48
  4. Step 4: Simplify right side
    115,421.52x = 6,326,257,687.26
  5. Step 5: Solve for x
    x = 6,326,257,687.26/115,421.52
  6. Step 6: Final answer
    x = 54,810.04

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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.