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Finding the Fourth Proportional to 103,783.94, 143,202.80 and 58,452.21

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Solution

The fourth proportional to 103,783.94, 143,202.80 and 58,452.21 is: 80,653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,783.94 : 143,202.80 = 58,452.21 : x
  2. Step 2: Convert to fraction form
    103,783.94/143,202.80 = 58,452.21/x
  3. Step 3: Cross multiply
    103,783.94x = 143,202.80 × 58,452.21
  4. Step 4: Simplify right side
    103,783.94x = 8,370,519,845.93
  5. Step 5: Solve for x
    x = 8,370,519,845.93/103,783.94
  6. Step 6: Final answer
    x = 80,653.33

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1.5x scale

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.