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Finding the Fourth Proportional to 155,184.88, 232,879.40 and 85,113.40

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Solution

The fourth proportional to 155,184.88, 232,879.40 and 85,113.40 is: 127,726.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,184.88 : 232,879.40 = 85,113.40 : x
  2. Step 2: Convert to fraction form
    155,184.88/232,879.40 = 85,113.40/x
  3. Step 3: Cross multiply
    155,184.88x = 232,879.40 × 85,113.40
  4. Step 4: Simplify right side
    155,184.88x = 19,821,157,523.96
  5. Step 5: Solve for x
    x = 19,821,157,523.96/155,184.88
  6. Step 6: Final answer
    x = 127,726.09

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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.