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Finding the Fourth Proportional to 104,603.49, 156,816.81 and 45,394.65

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Solution

The fourth proportional to 104,603.49, 156,816.81 and 45,394.65 is: 68,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,603.49 : 156,816.81 = 45,394.65 : x
  2. Step 2: Convert to fraction form
    104,603.49/156,816.81 = 45,394.65/x
  3. Step 3: Cross multiply
    104,603.49x = 156,816.81 × 45,394.65
  4. Step 4: Simplify right side
    104,603.49x = 7,118,644,204.07
  5. Step 5: Solve for x
    x = 7,118,644,204.07/104,603.49
  6. Step 6: Final answer
    x = 68,053.60

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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.