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Finding the Fourth Proportional to 223,295.76, 308,060.88 and 127,751.28

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Solution

The fourth proportional to 223,295.76, 308,060.88 and 127,751.28 is: 176,246.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,295.76 : 308,060.88 = 127,751.28 : x
  2. Step 2: Convert to fraction form
    223,295.76/308,060.88 = 127,751.28/x
  3. Step 3: Cross multiply
    223,295.76x = 308,060.88 × 127,751.28
  4. Step 4: Simplify right side
    223,295.76x = 39,355,171,737.93
  5. Step 5: Solve for x
    x = 39,355,171,737.93/223,295.76
  6. Step 6: Final answer
    x = 176,246.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.