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Finding the Fourth Proportional to 453,919.84, 680,969.48 and 134,077.28

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Solution

The fourth proportional to 453,919.84, 680,969.48 and 134,077.28 is: 201,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,919.84 : 680,969.48 = 134,077.28 : x
  2. Step 2: Convert to fraction form
    453,919.84/680,969.48 = 134,077.28/x
  3. Step 3: Cross multiply
    453,919.84x = 680,969.48 × 134,077.28
  4. Step 4: Simplify right side
    453,919.84x = 91,302,531,566.18
  5. Step 5: Solve for x
    x = 91,302,531,566.18/453,919.84
  6. Step 6: Final answer
    x = 201,142.41

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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.