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Finding the Fourth Proportional to 145,377.49, 200,591.53 and 84,936.46

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Solution

The fourth proportional to 145,377.49, 200,591.53 and 84,936.46 is: 117,195.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,377.49 : 200,591.53 = 84,936.46 : x
  2. Step 2: Convert to fraction form
    145,377.49/200,591.53 = 84,936.46/x
  3. Step 3: Cross multiply
    145,377.49x = 200,591.53 × 84,936.46
  4. Step 4: Simplify right side
    145,377.49x = 17,037,534,464.18
  5. Step 5: Solve for x
    x = 17,037,534,464.18/145,377.49
  6. Step 6: Final answer
    x = 117,195.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.