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Finding the Fourth Proportional to 132,063.60, 197,803.80 and 84,824.40

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Solution

The fourth proportional to 132,063.60, 197,803.80 and 84,824.40 is: 127,049.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,063.60 : 197,803.80 = 84,824.40 : x
  2. Step 2: Convert to fraction form
    132,063.60/197,803.80 = 84,824.40/x
  3. Step 3: Cross multiply
    132,063.60x = 197,803.80 × 84,824.40
  4. Step 4: Simplify right side
    132,063.60x = 16,778,588,652.72
  5. Step 5: Solve for x
    x = 16,778,588,652.72/132,063.60
  6. Step 6: Final answer
    x = 127,049.31

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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.