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Finding the Fourth Proportional to 42,119.89, 58,128.51 and 24,220.51

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Solution

The fourth proportional to 42,119.89, 58,128.51 and 24,220.51 is: 33,426.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,119.89 : 58,128.51 = 24,220.51 : x
  2. Step 2: Convert to fraction form
    42,119.89/58,128.51 = 24,220.51/x
  3. Step 3: Cross multiply
    42,119.89x = 58,128.51 × 24,220.51
  4. Step 4: Simplify right side
    42,119.89x = 1,407,902,157.74
  5. Step 5: Solve for x
    x = 1,407,902,157.74/42,119.89
  6. Step 6: Final answer
    x = 33,426.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.