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Finding the Fourth Proportional to 103,763.96, 155,294.10 and 63,808.04

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Solution

The fourth proportional to 103,763.96, 155,294.10 and 63,808.04 is: 95,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,763.96 : 155,294.10 = 63,808.04 : x
  2. Step 2: Convert to fraction form
    103,763.96/155,294.10 = 63,808.04/x
  3. Step 3: Cross multiply
    103,763.96x = 155,294.10 × 63,808.04
  4. Step 4: Simplify right side
    103,763.96x = 9,909,011,049.05
  5. Step 5: Solve for x
    x = 9,909,011,049.05/103,763.96
  6. Step 6: Final answer
    x = 95,495.70

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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.