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Finding the Fourth Proportional to 468,485.64, 702,859.68 and 188,199.72

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Solution

The fourth proportional to 468,485.64, 702,859.68 and 188,199.72 is: 282,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,485.64 : 702,859.68 = 188,199.72 : x
  2. Step 2: Convert to fraction form
    468,485.64/702,859.68 = 188,199.72/x
  3. Step 3: Cross multiply
    468,485.64x = 702,859.68 × 188,199.72
  4. Step 4: Simplify right side
    468,485.64x = 132,277,994,975.29
  5. Step 5: Solve for x
    x = 132,277,994,975.29/468,485.64
  6. Step 6: Final answer
    x = 282,352.29

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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.