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Finding the Fourth Proportional to 476,671.12, 715,006.04 and 121,685.12

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Solution

The fourth proportional to 476,671.12, 715,006.04 and 121,685.12 is: 182,527.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,671.12 : 715,006.04 = 121,685.12 : x
  2. Step 2: Convert to fraction form
    476,671.12/715,006.04 = 121,685.12/x
  3. Step 3: Cross multiply
    476,671.12x = 715,006.04 × 121,685.12
  4. Step 4: Simplify right side
    476,671.12x = 87,005,595,778.12
  5. Step 5: Solve for x
    x = 87,005,595,778.12/476,671.12
  6. Step 6: Final answer
    x = 182,527.52

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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.