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Finding the Fourth Proportional to 205,336.50, 308,127.63 and 88,600.50

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Solution

The fourth proportional to 205,336.50, 308,127.63 and 88,600.50 is: 132,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,336.50 : 308,127.63 = 88,600.50 : x
  2. Step 2: Convert to fraction form
    205,336.50/308,127.63 = 88,600.50/x
  3. Step 3: Cross multiply
    205,336.50x = 308,127.63 × 88,600.50
  4. Step 4: Simplify right side
    205,336.50x = 27,300,262,081.82
  5. Step 5: Solve for x
    x = 27,300,262,081.82/205,336.50
  6. Step 6: Final answer
    x = 132,953.77

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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.