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Finding the Fourth Proportional to 105,880.94, 146,104.94 and 63,438.38

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Solution

The fourth proportional to 105,880.94, 146,104.94 and 63,438.38 is: 87,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,880.94 : 146,104.94 = 63,438.38 : x
  2. Step 2: Convert to fraction form
    105,880.94/146,104.94 = 63,438.38/x
  3. Step 3: Cross multiply
    105,880.94x = 146,104.94 × 63,438.38
  4. Step 4: Simplify right side
    105,880.94x = 9,268,660,703.60
  5. Step 5: Solve for x
    x = 9,268,660,703.60/105,880.94
  6. Step 6: Final answer
    x = 87,538.52

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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.