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Finding the Fourth Proportional to 188,671.88, 283,056.99 and 55,547.78

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Solution

The fourth proportional to 188,671.88, 283,056.99 and 55,547.78 is: 83,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,671.88 : 283,056.99 = 55,547.78 : x
  2. Step 2: Convert to fraction form
    188,671.88/283,056.99 = 55,547.78/x
  3. Step 3: Cross multiply
    188,671.88x = 283,056.99 × 55,547.78
  4. Step 4: Simplify right side
    188,671.88x = 15,723,187,407.98
  5. Step 5: Solve for x
    x = 15,723,187,407.98/188,671.88
  6. Step 6: Final answer
    x = 83,336.15

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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.