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Finding the Fourth Proportional to 104,294.14, 143,885.21 and 68,038.21

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Solution

The fourth proportional to 104,294.14, 143,885.21 and 68,038.21 is: 93,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,294.14 : 143,885.21 = 68,038.21 : x
  2. Step 2: Convert to fraction form
    104,294.14/143,885.21 = 68,038.21/x
  3. Step 3: Cross multiply
    104,294.14x = 143,885.21 × 68,038.21
  4. Step 4: Simplify right side
    104,294.14x = 9,789,691,689.11
  5. Step 5: Solve for x
    x = 9,789,691,689.11/104,294.14
  6. Step 6: Final answer
    x = 93,866.17

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1.5x scale

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.