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Finding the Fourth Proportional to 314,109.20, 470,386.20 and 251,901.20

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Solution

The fourth proportional to 314,109.20, 470,386.20 and 251,901.20 is: 377,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,109.20 : 470,386.20 = 251,901.20 : x
  2. Step 2: Convert to fraction form
    314,109.20/470,386.20 = 251,901.20/x
  3. Step 3: Cross multiply
    314,109.20x = 470,386.20 × 251,901.20
  4. Step 4: Simplify right side
    314,109.20x = 118,490,848,243.44
  5. Step 5: Solve for x
    x = 118,490,848,243.44/314,109.20
  6. Step 6: Final answer
    x = 377,228.20

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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.