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Finding the Fourth Proportional to 75,228.76, 103,813.14 and 43,396.84

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Solution

The fourth proportional to 75,228.76, 103,813.14 and 43,396.84 is: 59,886.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,228.76 : 103,813.14 = 43,396.84 : x
  2. Step 2: Convert to fraction form
    75,228.76/103,813.14 = 43,396.84/x
  3. Step 3: Cross multiply
    75,228.76x = 103,813.14 × 43,396.84
  4. Step 4: Simplify right side
    75,228.76x = 4,505,162,226.48
  5. Step 5: Solve for x
    x = 4,505,162,226.48/75,228.76
  6. Step 6: Final answer
    x = 59,886.17

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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.