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Finding the Fourth Proportional to 303,358.30, 455,037.45 and 92,968.90

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Solution

The fourth proportional to 303,358.30, 455,037.45 and 92,968.90 is: 139,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,358.30 : 455,037.45 = 92,968.90 : x
  2. Step 2: Convert to fraction form
    303,358.30/455,037.45 = 92,968.90/x
  3. Step 3: Cross multiply
    303,358.30x = 455,037.45 × 92,968.90
  4. Step 4: Simplify right side
    303,358.30x = 42,304,331,185.31
  5. Step 5: Solve for x
    x = 42,304,331,185.31/303,358.30
  6. Step 6: Final answer
    x = 139,453.35

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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.