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Finding the Fourth Proportional to 213,797.88, 320,672.25 and 56,038.77

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Solution

The fourth proportional to 213,797.88, 320,672.25 and 56,038.77 is: 84,051.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,797.88 : 320,672.25 = 56,038.77 : x
  2. Step 2: Convert to fraction form
    213,797.88/320,672.25 = 56,038.77/x
  3. Step 3: Cross multiply
    213,797.88x = 320,672.25 × 56,038.77
  4. Step 4: Simplify right side
    213,797.88x = 17,970,078,463.13
  5. Step 5: Solve for x
    x = 17,970,078,463.13/213,797.88
  6. Step 6: Final answer
    x = 84,051.71

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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.