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Finding the Fourth Proportional to 268,527.85, 402,791.74 and 127,860.01

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Solution

The fourth proportional to 268,527.85, 402,791.74 and 127,860.01 is: 191,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,527.85 : 402,791.74 = 127,860.01 : x
  2. Step 2: Convert to fraction form
    268,527.85/402,791.74 = 127,860.01/x
  3. Step 3: Cross multiply
    268,527.85x = 402,791.74 × 127,860.01
  4. Step 4: Simplify right side
    268,527.85x = 51,500,955,904.32
  5. Step 5: Solve for x
    x = 51,500,955,904.32/268,527.85
  6. Step 6: Final answer
    x = 191,790.00

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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.