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Finding the Fourth Proportional to 132,068.60, 197,811.30 and 84,829.40

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Solution

The fourth proportional to 132,068.60, 197,811.30 and 84,829.40 is: 127,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,068.60 : 197,811.30 = 84,829.40 : x
  2. Step 2: Convert to fraction form
    132,068.60/197,811.30 = 84,829.40/x
  3. Step 3: Cross multiply
    132,068.60x = 197,811.30 × 84,829.40
  4. Step 4: Simplify right side
    132,068.60x = 16,780,213,892.22
  5. Step 5: Solve for x
    x = 16,780,213,892.22/132,068.60
  6. Step 6: Final answer
    x = 127,056.80

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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.