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Finding the Fourth Proportional to 105,954.72, 146,152.65 and 62,905.01

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Solution

The fourth proportional to 105,954.72, 146,152.65 and 62,905.01 is: 86,770.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,954.72 : 146,152.65 = 62,905.01 : x
  2. Step 2: Convert to fraction form
    105,954.72/146,152.65 = 62,905.01/x
  3. Step 3: Cross multiply
    105,954.72x = 146,152.65 × 62,905.01
  4. Step 4: Simplify right side
    105,954.72x = 9,193,733,414.91
  5. Step 5: Solve for x
    x = 9,193,733,414.91/105,954.72
  6. Step 6: Final answer
    x = 86,770.40

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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.