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Finding the Fourth Proportional to 127,372.84, 175,790.72 and 73,647.48

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Solution

The fourth proportional to 127,372.84, 175,790.72 and 73,647.48 is: 101,642.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,372.84 : 175,790.72 = 73,647.48 : x
  2. Step 2: Convert to fraction form
    127,372.84/175,790.72 = 73,647.48/x
  3. Step 3: Cross multiply
    127,372.84x = 175,790.72 × 73,647.48
  4. Step 4: Simplify right side
    127,372.84x = 12,946,543,635.41
  5. Step 5: Solve for x
    x = 12,946,543,635.41/127,372.84
  6. Step 6: Final answer
    x = 101,642.89

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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.