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Finding the Fourth Proportional to 67,404.60, 101,106.90 and 45,228.60

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Solution

The fourth proportional to 67,404.60, 101,106.90 and 45,228.60 is: 67,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,404.60 : 101,106.90 = 45,228.60 : x
  2. Step 2: Convert to fraction form
    67,404.60/101,106.90 = 45,228.60/x
  3. Step 3: Cross multiply
    67,404.60x = 101,106.90 × 45,228.60
  4. Step 4: Simplify right side
    67,404.60x = 4,572,923,537.34
  5. Step 5: Solve for x
    x = 4,572,923,537.34/67,404.60
  6. Step 6: Final answer
    x = 67,842.90

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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.