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Finding the Fourth Proportional to 118,014.75, 162,858.29 and 64,300.16

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Solution

The fourth proportional to 118,014.75, 162,858.29 and 64,300.16 is: 88,733.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,014.75 : 162,858.29 = 64,300.16 : x
  2. Step 2: Convert to fraction form
    118,014.75/162,858.29 = 64,300.16/x
  3. Step 3: Cross multiply
    118,014.75x = 162,858.29 × 64,300.16
  4. Step 4: Simplify right side
    118,014.75x = 10,471,813,450.79
  5. Step 5: Solve for x
    x = 10,471,813,450.79/118,014.75
  6. Step 6: Final answer
    x = 88,733.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.