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Finding the Fourth Proportional to 75,326.80, 103,950.96 and 41,792.80

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Solution

The fourth proportional to 75,326.80, 103,950.96 and 41,792.80 is: 57,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,326.80 : 103,950.96 = 41,792.80 : x
  2. Step 2: Convert to fraction form
    75,326.80/103,950.96 = 41,792.80/x
  3. Step 3: Cross multiply
    75,326.80x = 103,950.96 × 41,792.80
  4. Step 4: Simplify right side
    75,326.80x = 4,344,401,681.09
  5. Step 5: Solve for x
    x = 4,344,401,681.09/75,326.80
  6. Step 6: Final answer
    x = 57,674.05

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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.