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Finding the Fourth Proportional to 70,203.61, 105,305.43 and 23,456.49

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Solution

The fourth proportional to 70,203.61, 105,305.43 and 23,456.49 is: 35,184.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,203.61 : 105,305.43 = 23,456.49 : x
  2. Step 2: Convert to fraction form
    70,203.61/105,305.43 = 23,456.49/x
  3. Step 3: Cross multiply
    70,203.61x = 105,305.43 × 23,456.49
  4. Step 4: Simplify right side
    70,203.61x = 2,470,095,765.74
  5. Step 5: Solve for x
    x = 2,470,095,765.74/70,203.61
  6. Step 6: Final answer
    x = 35,184.74

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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.