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Finding the Fourth Proportional to 114,619.01, 171,704.86 and 75,056.18

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Solution

The fourth proportional to 114,619.01, 171,704.86 and 75,056.18 is: 112,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,619.01 : 171,704.86 = 75,056.18 : x
  2. Step 2: Convert to fraction form
    114,619.01/171,704.86 = 75,056.18/x
  3. Step 3: Cross multiply
    114,619.01x = 171,704.86 × 75,056.18
  4. Step 4: Simplify right side
    114,619.01x = 12,887,509,645.23
  5. Step 5: Solve for x
    x = 12,887,509,645.23/114,619.01
  6. Step 6: Final answer
    x = 112,437.81

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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.