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Finding the Fourth Proportional to 70,603.48, 105,743.94 and 33,693.40

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Solution

The fourth proportional to 70,603.48, 105,743.94 and 33,693.40 is: 50,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,603.48 : 105,743.94 = 33,693.40 : x
  2. Step 2: Convert to fraction form
    70,603.48/105,743.94 = 33,693.40/x
  3. Step 3: Cross multiply
    70,603.48x = 105,743.94 × 33,693.40
  4. Step 4: Simplify right side
    70,603.48x = 3,562,872,868.00
  5. Step 5: Solve for x
    x = 3,562,872,868.00/70,603.48
  6. Step 6: Final answer
    x = 50,463.13

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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.