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Finding the Fourth Proportional to 127,844.99, 176,242.70 and 100,573.67

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Solution

The fourth proportional to 127,844.99, 176,242.70 and 100,573.67 is: 138,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,844.99 : 176,242.70 = 100,573.67 : x
  2. Step 2: Convert to fraction form
    127,844.99/176,242.70 = 100,573.67/x
  3. Step 3: Cross multiply
    127,844.99x = 176,242.70 × 100,573.67
  4. Step 4: Simplify right side
    127,844.99x = 17,725,375,464.60
  5. Step 5: Solve for x
    x = 17,725,375,464.60/127,844.99
  6. Step 6: Final answer
    x = 138,647.40

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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.