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Finding the Fourth Proportional to 108,548.40, 162,848.52 and 45,333.30

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Solution

The fourth proportional to 108,548.40, 162,848.52 and 45,333.30 is: 68,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,548.40 : 162,848.52 = 45,333.30 : x
  2. Step 2: Convert to fraction form
    108,548.40/162,848.52 = 45,333.30/x
  3. Step 3: Cross multiply
    108,548.40x = 162,848.52 × 45,333.30
  4. Step 4: Simplify right side
    108,548.40x = 7,382,460,811.72
  5. Step 5: Solve for x
    x = 7,382,460,811.72/108,548.40
  6. Step 6: Final answer
    x = 68,010.78

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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.