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Finding the Fourth Proportional to 303,429.60, 455,144.40 and 93,067.20

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Solution

The fourth proportional to 303,429.60, 455,144.40 and 93,067.20 is: 139,600.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,429.60 : 455,144.40 = 93,067.20 : x
  2. Step 2: Convert to fraction form
    303,429.60/455,144.40 = 93,067.20/x
  3. Step 3: Cross multiply
    303,429.60x = 455,144.40 × 93,067.20
  4. Step 4: Simplify right side
    303,429.60x = 42,359,014,903.68
  5. Step 5: Solve for x
    x = 42,359,014,903.68/303,429.60
  6. Step 6: Final answer
    x = 139,600.80

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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.