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Finding the Fourth Proportional to 114,745.21, 171,749.46 and 61,303.64

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Solution

The fourth proportional to 114,745.21, 171,749.46 and 61,303.64 is: 91,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,745.21 : 171,749.46 = 61,303.64 : x
  2. Step 2: Convert to fraction form
    114,745.21/171,749.46 = 61,303.64/x
  3. Step 3: Cross multiply
    114,745.21x = 171,749.46 × 61,303.64
  4. Step 4: Simplify right side
    114,745.21x = 10,528,866,437.18
  5. Step 5: Solve for x
    x = 10,528,866,437.18/114,745.21
  6. Step 6: Final answer
    x = 91,758.66

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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.