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Finding the Fourth Proportional to 104,229, 143,954.82 and 70,636.68

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Solution

The fourth proportional to 104,229, 143,954.82 and 70,636.68 is: 97,559.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,229 : 143,954.82 = 70,636.68 : x
  2. Step 2: Convert to fraction form
    104,229/143,954.82 = 70,636.68/x
  3. Step 3: Cross multiply
    104,229x = 143,954.82 × 70,636.68
  4. Step 4: Simplify right side
    104,229x = 10,168,490,554.80
  5. Step 5: Solve for x
    x = 10,168,490,554.80/104,229
  6. Step 6: Final answer
    x = 97,559.13

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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.