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Finding the Fourth Proportional to 146,312.82, 201,905.04 and 91,893.10

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Solution

The fourth proportional to 146,312.82, 201,905.04 and 91,893.10 is: 126,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,312.82 : 201,905.04 = 91,893.10 : x
  2. Step 2: Convert to fraction form
    146,312.82/201,905.04 = 91,893.10/x
  3. Step 3: Cross multiply
    146,312.82x = 201,905.04 × 91,893.10
  4. Step 4: Simplify right side
    146,312.82x = 18,553,680,031.22
  5. Step 5: Solve for x
    x = 18,553,680,031.22/146,312.82
  6. Step 6: Final answer
    x = 126,808.30

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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.