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Finding the Fourth Proportional to 84,615.40, 126,971.70 and 32,062.60

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Solution

The fourth proportional to 84,615.40, 126,971.70 and 32,062.60 is: 48,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,615.40 : 126,971.70 = 32,062.60 : x
  2. Step 2: Convert to fraction form
    84,615.40/126,971.70 = 32,062.60/x
  3. Step 3: Cross multiply
    84,615.40x = 126,971.70 × 32,062.60
  4. Step 4: Simplify right side
    84,615.40x = 4,071,042,828.42
  5. Step 5: Solve for x
    x = 4,071,042,828.42/84,615.40
  6. Step 6: Final answer
    x = 48,112.32

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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.