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Finding the Fourth Proportional to 447,671.80, 671,580.60 and 132,160.60

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Solution

The fourth proportional to 447,671.80, 671,580.60 and 132,160.60 is: 198,262.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,671.80 : 671,580.60 = 132,160.60 : x
  2. Step 2: Convert to fraction form
    447,671.80/671,580.60 = 132,160.60/x
  3. Step 3: Cross multiply
    447,671.80x = 671,580.60 × 132,160.60
  4. Step 4: Simplify right side
    447,671.80x = 88,756,492,869.81
  5. Step 5: Solve for x
    x = 88,756,492,869.81/447,671.80
  6. Step 6: Final answer
    x = 198,262.42

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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.