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Finding the Fourth Proportional to 174,643.79, 261,571.82 and 122,287.01

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Solution

The fourth proportional to 174,643.79, 261,571.82 and 122,287.01 is: 183,154.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,643.79 : 261,571.82 = 122,287.01 : x
  2. Step 2: Convert to fraction form
    174,643.79/261,571.82 = 122,287.01/x
  3. Step 3: Cross multiply
    174,643.79x = 261,571.82 × 122,287.01
  4. Step 4: Simplify right side
    174,643.79x = 31,986,833,848.76
  5. Step 5: Solve for x
    x = 31,986,833,848.76/174,643.79
  6. Step 6: Final answer
    x = 183,154.72

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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.