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Finding the Fourth Proportional to 124,119.78, 186,208.90 and 35,374.56

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Solution

The fourth proportional to 124,119.78, 186,208.90 and 35,374.56 is: 53,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,119.78 : 186,208.90 = 35,374.56 : x
  2. Step 2: Convert to fraction form
    124,119.78/186,208.90 = 35,374.56/x
  3. Step 3: Cross multiply
    124,119.78x = 186,208.90 × 35,374.56
  4. Step 4: Simplify right side
    124,119.78x = 6,587,057,905.58
  5. Step 5: Solve for x
    x = 6,587,057,905.58/124,119.78
  6. Step 6: Final answer
    x = 53,070.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.