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Finding the Fourth Proportional to 75,157.51, 103,693.89 and 43,322.08

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Solution

The fourth proportional to 75,157.51, 103,693.89 and 43,322.08 is: 59,770.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.51 : 103,693.89 = 43,322.08 : x
  2. Step 2: Convert to fraction form
    75,157.51/103,693.89 = 43,322.08/x
  3. Step 3: Cross multiply
    75,157.51x = 103,693.89 × 43,322.08
  4. Step 4: Simplify right side
    75,157.51x = 4,492,234,998.09
  5. Step 5: Solve for x
    x = 4,492,234,998.09/75,157.51
  6. Step 6: Final answer
    x = 59,770.94

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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.