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Finding the Fourth Proportional to 104,491.61, 144,242.56 and 70,546.08

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Solution

The fourth proportional to 104,491.61, 144,242.56 and 70,546.08 is: 97,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,491.61 : 144,242.56 = 70,546.08 : x
  2. Step 2: Convert to fraction form
    104,491.61/144,242.56 = 70,546.08/x
  3. Step 3: Cross multiply
    104,491.61x = 144,242.56 × 70,546.08
  4. Step 4: Simplify right side
    104,491.61x = 10,175,747,177.16
  5. Step 5: Solve for x
    x = 10,175,747,177.16/104,491.61
  6. Step 6: Final answer
    x = 97,383.39

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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.