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Finding the Fourth Proportional to 188,041.99, 259,459.80 and 111,527.51

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Solution

The fourth proportional to 188,041.99, 259,459.80 and 111,527.51 is: 153,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,041.99 : 259,459.80 = 111,527.51 : x
  2. Step 2: Convert to fraction form
    188,041.99/259,459.80 = 111,527.51/x
  3. Step 3: Cross multiply
    188,041.99x = 259,459.80 × 111,527.51
  4. Step 4: Simplify right side
    188,041.99x = 28,936,905,439.10
  5. Step 5: Solve for x
    x = 28,936,905,439.10/188,041.99
  6. Step 6: Final answer
    x = 153,885.34

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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.