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Finding the Fourth Proportional to 208,671.94, 313,048.49 and 88,727.51

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Solution

The fourth proportional to 208,671.94, 313,048.49 and 88,727.51 is: 133,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,671.94 : 313,048.49 = 88,727.51 : x
  2. Step 2: Convert to fraction form
    208,671.94/313,048.49 = 88,727.51/x
  3. Step 3: Cross multiply
    208,671.94x = 313,048.49 × 88,727.51
  4. Step 4: Simplify right side
    208,671.94x = 27,776,014,031.40
  5. Step 5: Solve for x
    x = 27,776,014,031.40/208,671.94
  6. Step 6: Final answer
    x = 133,108.53

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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.