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Finding the Fourth Proportional to 273,876.86, 411,153.59 and 129,920.32

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Solution

The fourth proportional to 273,876.86, 411,153.59 and 129,920.32 is: 195,040.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,876.86 : 411,153.59 = 129,920.32 : x
  2. Step 2: Convert to fraction form
    273,876.86/411,153.59 = 129,920.32/x
  3. Step 3: Cross multiply
    273,876.86x = 411,153.59 × 129,920.32
  4. Step 4: Simplify right side
    273,876.86x = 53,417,203,276.58
  5. Step 5: Solve for x
    x = 53,417,203,276.58/273,876.86
  6. Step 6: Final answer
    x = 195,040.95

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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.