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Finding the Fourth Proportional to 64,303.94, 96,603.75 and 45,372.15

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Solution

The fourth proportional to 64,303.94, 96,603.75 and 45,372.15 is: 68,162.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,303.94 : 96,603.75 = 45,372.15 : x
  2. Step 2: Convert to fraction form
    64,303.94/96,603.75 = 45,372.15/x
  3. Step 3: Cross multiply
    64,303.94x = 96,603.75 × 45,372.15
  4. Step 4: Simplify right side
    64,303.94x = 4,383,119,835.56
  5. Step 5: Solve for x
    x = 4,383,119,835.56/64,303.94
  6. Step 6: Final answer
    x = 68,162.54

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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.