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Finding the Fourth Proportional to 132,322.60, 198,483.90 and 100,829.80

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Solution

The fourth proportional to 132,322.60, 198,483.90 and 100,829.80 is: 151,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,322.60 : 198,483.90 = 100,829.80 : x
  2. Step 2: Convert to fraction form
    132,322.60/198,483.90 = 100,829.80/x
  3. Step 3: Cross multiply
    132,322.60x = 198,483.90 × 100,829.80
  4. Step 4: Simplify right side
    132,322.60x = 20,013,091,940.22
  5. Step 5: Solve for x
    x = 20,013,091,940.22/132,322.60
  6. Step 6: Final answer
    x = 151,244.70

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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.