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Finding the Fourth Proportional to 132,003.60, 198,005.40 and 76,016.40

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Solution

The fourth proportional to 132,003.60, 198,005.40 and 76,016.40 is: 114,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,003.60 : 198,005.40 = 76,016.40 : x
  2. Step 2: Convert to fraction form
    132,003.60/198,005.40 = 76,016.40/x
  3. Step 3: Cross multiply
    132,003.60x = 198,005.40 × 76,016.40
  4. Step 4: Simplify right side
    132,003.60x = 15,051,657,688.56
  5. Step 5: Solve for x
    x = 15,051,657,688.56/132,003.60
  6. Step 6: Final answer
    x = 114,024.60

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1.5x scale

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.