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Finding the Fourth Proportional to 106,992.93, 147,624.89 and 63,363.45

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Solution

The fourth proportional to 106,992.93, 147,624.89 and 63,363.45 is: 87,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,992.93 : 147,624.89 = 63,363.45 : x
  2. Step 2: Convert to fraction form
    106,992.93/147,624.89 = 63,363.45/x
  3. Step 3: Cross multiply
    106,992.93x = 147,624.89 × 63,363.45
  4. Step 4: Simplify right side
    106,992.93x = 9,354,022,810.97
  5. Step 5: Solve for x
    x = 9,354,022,810.97/106,992.93
  6. Step 6: Final answer
    x = 87,426.55

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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.