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Finding the Fourth Proportional to 115,438.80, 173,158.20 and 36,552.90

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Solution

The fourth proportional to 115,438.80, 173,158.20 and 36,552.90 is: 54,829.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,438.80 : 173,158.20 = 36,552.90 : x
  2. Step 2: Convert to fraction form
    115,438.80/173,158.20 = 36,552.90/x
  3. Step 3: Cross multiply
    115,438.80x = 173,158.20 × 36,552.90
  4. Step 4: Simplify right side
    115,438.80x = 6,329,434,368.78
  5. Step 5: Solve for x
    x = 6,329,434,368.78/115,438.80
  6. Step 6: Final answer
    x = 54,829.35

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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.