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Finding the Fourth Proportional to 71,703.38, 107,330.42 and 46,369.28

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Solution

The fourth proportional to 71,703.38, 107,330.42 and 46,369.28 is: 69,408.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,703.38 : 107,330.42 = 46,369.28 : x
  2. Step 2: Convert to fraction form
    71,703.38/107,330.42 = 46,369.28/x
  3. Step 3: Cross multiply
    71,703.38x = 107,330.42 × 46,369.28
  4. Step 4: Simplify right side
    71,703.38x = 4,976,834,297.50
  5. Step 5: Solve for x
    x = 4,976,834,297.50/71,703.38
  6. Step 6: Final answer
    x = 69,408.64

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1.5x scale

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.