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Finding the Fourth Proportional to 162,028.80, 243,043.20 and 162,028.80

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Solution

The fourth proportional to 162,028.80, 243,043.20 and 162,028.80 is: 243,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,028.80 : 243,043.20 = 162,028.80 : x
  2. Step 2: Convert to fraction form
    162,028.80/243,043.20 = 162,028.80/x
  3. Step 3: Cross multiply
    162,028.80x = 243,043.20 × 162,028.80
  4. Step 4: Simplify right side
    162,028.80x = 39,379,998,044.16
  5. Step 5: Solve for x
    x = 39,379,998,044.16/162,028.80
  6. Step 6: Final answer
    x = 243,043.20

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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.