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Finding the Fourth Proportional to 75,196.80, 103,765.08 and 43,368.12

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Solution

The fourth proportional to 75,196.80, 103,765.08 and 43,368.12 is: 59,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,196.80 : 103,765.08 = 43,368.12 : x
  2. Step 2: Convert to fraction form
    75,196.80/103,765.08 = 43,368.12/x
  3. Step 3: Cross multiply
    75,196.80x = 103,765.08 × 43,368.12
  4. Step 4: Simplify right side
    75,196.80x = 4,500,096,441.25
  5. Step 5: Solve for x
    x = 4,500,096,441.25/75,196.80
  6. Step 6: Final answer
    x = 59,844.25

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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.