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Finding the Fourth Proportional to 336,667.68, 505,079.28 and 100,005.12

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Solution

The fourth proportional to 336,667.68, 505,079.28 and 100,005.12 is: 150,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,667.68 : 505,079.28 = 100,005.12 : x
  2. Step 2: Convert to fraction form
    336,667.68/505,079.28 = 100,005.12/x
  3. Step 3: Cross multiply
    336,667.68x = 505,079.28 × 100,005.12
  4. Step 4: Simplify right side
    336,667.68x = 50,510,514,005.91
  5. Step 5: Solve for x
    x = 50,510,514,005.91/336,667.68
  6. Step 6: Final answer
    x = 150,030.78

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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.