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Finding the Fourth Proportional to 213,631.67, 320,444.67 and 63,873.20

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Solution

The fourth proportional to 213,631.67, 320,444.67 and 63,873.20 is: 95,808.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,631.67 : 320,444.67 = 63,873.20 : x
  2. Step 2: Convert to fraction form
    213,631.67/320,444.67 = 63,873.20/x
  3. Step 3: Cross multiply
    213,631.67x = 320,444.67 × 63,873.20
  4. Step 4: Simplify right side
    213,631.67x = 20,467,826,495.84
  5. Step 5: Solve for x
    x = 20,467,826,495.84/213,631.67
  6. Step 6: Final answer
    x = 95,808.95

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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.