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Finding the Fourth Proportional to 229,879.94, 317,206.44 and 127,881.29

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Solution

The fourth proportional to 229,879.94, 317,206.44 and 127,881.29 is: 176,460.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,879.94 : 317,206.44 = 127,881.29 : x
  2. Step 2: Convert to fraction form
    229,879.94/317,206.44 = 127,881.29/x
  3. Step 3: Cross multiply
    229,879.94x = 317,206.44 × 127,881.29
  4. Step 4: Simplify right side
    229,879.94x = 40,564,767,157.48
  5. Step 5: Solve for x
    x = 40,564,767,157.48/229,879.94
  6. Step 6: Final answer
    x = 176,460.67

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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.