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Finding the Fourth Proportional to 127,674.95, 176,192.64 and 71,087.54

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Solution

The fourth proportional to 127,674.95, 176,192.64 and 71,087.54 is: 98,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,674.95 : 176,192.64 = 71,087.54 : x
  2. Step 2: Convert to fraction form
    127,674.95/176,192.64 = 71,087.54/x
  3. Step 3: Cross multiply
    127,674.95x = 176,192.64 × 71,087.54
  4. Step 4: Simplify right side
    127,674.95x = 12,525,100,462.74
  5. Step 5: Solve for x
    x = 12,525,100,462.74/127,674.95
  6. Step 6: Final answer
    x = 98,101.48

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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.