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Finding the Fourth Proportional to 468,218.18, 702,059.01 and 143,921.82

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Solution

The fourth proportional to 468,218.18, 702,059.01 and 143,921.82 is: 215,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,218.18 : 702,059.01 = 143,921.82 : x
  2. Step 2: Convert to fraction form
    468,218.18/702,059.01 = 143,921.82/x
  3. Step 3: Cross multiply
    468,218.18x = 702,059.01 × 143,921.82
  4. Step 4: Simplify right side
    468,218.18x = 101,041,610,466.60
  5. Step 5: Solve for x
    x = 101,041,610,466.60/468,218.18
  6. Step 6: Final answer
    x = 215,800.27

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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.