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Finding the Fourth Proportional to 162,567.20, 243,753.60 and 83,835.20

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Solution

The fourth proportional to 162,567.20, 243,753.60 and 83,835.20 is: 125,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,567.20 : 243,753.60 = 83,835.20 : x
  2. Step 2: Convert to fraction form
    162,567.20/243,753.60 = 83,835.20/x
  3. Step 3: Cross multiply
    162,567.20x = 243,753.60 × 83,835.20
  4. Step 4: Simplify right side
    162,567.20x = 20,435,131,806.72
  5. Step 5: Solve for x
    x = 20,435,131,806.72/162,567.20
  6. Step 6: Final answer
    x = 125,702.67

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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.