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Finding the Fourth Proportional to 49,404.60, 74,106.90 and 45,322.20

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Solution

The fourth proportional to 49,404.60, 74,106.90 and 45,322.20 is: 67,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,404.60 : 74,106.90 = 45,322.20 : x
  2. Step 2: Convert to fraction form
    49,404.60/74,106.90 = 45,322.20/x
  3. Step 3: Cross multiply
    49,404.60x = 74,106.90 × 45,322.20
  4. Step 4: Simplify right side
    49,404.60x = 3,358,687,743.18
  5. Step 5: Solve for x
    x = 3,358,687,743.18/49,404.60
  6. Step 6: Final answer
    x = 67,983.30

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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.