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Finding the Fourth Proportional to 229,090.76, 343,680.92 and 69,179.70

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Solution

The fourth proportional to 229,090.76, 343,680.92 and 69,179.70 is: 103,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,090.76 : 343,680.92 = 69,179.70 : x
  2. Step 2: Convert to fraction form
    229,090.76/343,680.92 = 69,179.70/x
  3. Step 3: Cross multiply
    229,090.76x = 343,680.92 × 69,179.70
  4. Step 4: Simplify right side
    229,090.76x = 23,775,742,595.43
  5. Step 5: Solve for x
    x = 23,775,742,595.43/229,090.76
  6. Step 6: Final answer
    x = 103,783.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.