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Finding the Fourth Proportional to 75,241.99, 103,835.10 and 45,028.63

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Solution

The fourth proportional to 75,241.99, 103,835.10 and 45,028.63 is: 62,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,241.99 : 103,835.10 = 45,028.63 : x
  2. Step 2: Convert to fraction form
    75,241.99/103,835.10 = 45,028.63/x
  3. Step 3: Cross multiply
    75,241.99x = 103,835.10 × 45,028.63
  4. Step 4: Simplify right side
    75,241.99x = 4,675,552,298.91
  5. Step 5: Solve for x
    x = 4,675,552,298.91/75,241.99
  6. Step 6: Final answer
    x = 62,140.20

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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.