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Finding the Fourth Proportional to 216,736.40, 325,061.40 and 104,416.40

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Solution

The fourth proportional to 216,736.40, 325,061.40 and 104,416.40 is: 156,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,736.40 : 325,061.40 = 104,416.40 : x
  2. Step 2: Convert to fraction form
    216,736.40/325,061.40 = 104,416.40/x
  3. Step 3: Cross multiply
    216,736.40x = 325,061.40 × 104,416.40
  4. Step 4: Simplify right side
    216,736.40x = 33,941,741,166.96
  5. Step 5: Solve for x
    x = 33,941,741,166.96/216,736.40
  6. Step 6: Final answer
    x = 156,603.79

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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.