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Finding the Fourth Proportional to 229,015.56, 316,043.20 and 125,649.04

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Solution

The fourth proportional to 229,015.56, 316,043.20 and 125,649.04 is: 173,396.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,015.56 : 316,043.20 = 125,649.04 : x
  2. Step 2: Convert to fraction form
    229,015.56/316,043.20 = 125,649.04/x
  3. Step 3: Cross multiply
    229,015.56x = 316,043.20 × 125,649.04
  4. Step 4: Simplify right side
    229,015.56x = 39,710,524,678.53
  5. Step 5: Solve for x
    x = 39,710,524,678.53/229,015.56
  6. Step 6: Final answer
    x = 173,396.62

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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.