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Finding the Fourth Proportional to 124,476.48, 171,756.72 and 118,171.44

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Solution

The fourth proportional to 124,476.48, 171,756.72 and 118,171.44 is: 163,056.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,476.48 : 171,756.72 = 118,171.44 : x
  2. Step 2: Convert to fraction form
    124,476.48/171,756.72 = 118,171.44/x
  3. Step 3: Cross multiply
    124,476.48x = 171,756.72 × 118,171.44
  4. Step 4: Simplify right side
    124,476.48x = 20,296,738,932.08
  5. Step 5: Solve for x
    x = 20,296,738,932.08/124,476.48
  6. Step 6: Final answer
    x = 163,056.82

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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.