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Finding the Fourth Proportional to 229,008.81, 316,016.44 and 127,030.21

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Solution

The fourth proportional to 229,008.81, 316,016.44 and 127,030.21 is: 175,292.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,008.81 : 316,016.44 = 127,030.21 : x
  2. Step 2: Convert to fraction form
    229,008.81/316,016.44 = 127,030.21/x
  3. Step 3: Cross multiply
    229,008.81x = 316,016.44 × 127,030.21
  4. Step 4: Simplify right side
    229,008.81x = 40,143,634,736.65
  5. Step 5: Solve for x
    x = 40,143,634,736.65/229,008.81
  6. Step 6: Final answer
    x = 175,292.97

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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.