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Finding the Fourth Proportional to 441,970.40, 662,955.60 and 161,451.20

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Solution

The fourth proportional to 441,970.40, 662,955.60 and 161,451.20 is: 242,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,970.40 : 662,955.60 = 161,451.20 : x
  2. Step 2: Convert to fraction form
    441,970.40/662,955.60 = 161,451.20/x
  3. Step 3: Cross multiply
    441,970.40x = 662,955.60 × 161,451.20
  4. Step 4: Simplify right side
    441,970.40x = 107,034,977,166.72
  5. Step 5: Solve for x
    x = 107,034,977,166.72/441,970.40
  6. Step 6: Final answer
    x = 242,176.80

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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.