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Finding the Fourth Proportional to 468,216.68, 702,056.75 and 143,920.32

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Solution

The fourth proportional to 468,216.68, 702,056.75 and 143,920.32 is: 215,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,216.68 : 702,056.75 = 143,920.32 : x
  2. Step 2: Convert to fraction form
    468,216.68/702,056.75 = 143,920.32/x
  3. Step 3: Cross multiply
    468,216.68x = 702,056.75 × 143,920.32
  4. Step 4: Simplify right side
    468,216.68x = 101,040,231,954.71
  5. Step 5: Solve for x
    x = 101,040,231,954.71/468,216.68
  6. Step 6: Final answer
    x = 215,798.02

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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.