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Finding the Fourth Proportional to 215,751.44, 323,575.19 and 65,993.00

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Solution

The fourth proportional to 215,751.44, 323,575.19 and 65,993.00 is: 98,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,751.44 : 323,575.19 = 65,993.00 : x
  2. Step 2: Convert to fraction form
    215,751.44/323,575.19 = 65,993.00/x
  3. Step 3: Cross multiply
    215,751.44x = 323,575.19 × 65,993.00
  4. Step 4: Simplify right side
    215,751.44x = 21,353,696,869.71
  5. Step 5: Solve for x
    x = 21,353,696,869.71/215,751.44
  6. Step 6: Final answer
    x = 98,973.60

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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.