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Finding the Fourth Proportional to 162,758.80, 243,943.80 and 83,832.40

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Solution

The fourth proportional to 162,758.80, 243,943.80 and 83,832.40 is: 125,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,758.80 : 243,943.80 = 83,832.40 : x
  2. Step 2: Convert to fraction form
    162,758.80/243,943.80 = 83,832.40/x
  3. Step 3: Cross multiply
    162,758.80x = 243,943.80 × 83,832.40
  4. Step 4: Simplify right side
    162,758.80x = 20,450,394,219.12
  5. Step 5: Solve for x
    x = 20,450,394,219.12/162,758.80
  6. Step 6: Final answer
    x = 125,648.47

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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.