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Finding the Fourth Proportional to 124,057.76, 186,099 and 39,796.88

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Solution

The fourth proportional to 124,057.76, 186,099 and 39,796.88 is: 59,699.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,057.76 : 186,099 = 39,796.88 : x
  2. Step 2: Convert to fraction form
    124,057.76/186,099 = 39,796.88/x
  3. Step 3: Cross multiply
    124,057.76x = 186,099 × 39,796.88
  4. Step 4: Simplify right side
    124,057.76x = 7,406,159,571.12
  5. Step 5: Solve for x
    x = 7,406,159,571.12/124,057.76
  6. Step 6: Final answer
    x = 59,699.29

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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.