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Finding the Fourth Proportional to 127,590.54, 176,063.49 and 73,879.20

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Solution

The fourth proportional to 127,590.54, 176,063.49 and 73,879.20 is: 101,946.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,590.54 : 176,063.49 = 73,879.20 : x
  2. Step 2: Convert to fraction form
    127,590.54/176,063.49 = 73,879.20/x
  3. Step 3: Cross multiply
    127,590.54x = 176,063.49 × 73,879.20
  4. Step 4: Simplify right side
    127,590.54x = 13,007,429,790.41
  5. Step 5: Solve for x
    x = 13,007,429,790.41/127,590.54
  6. Step 6: Final answer
    x = 101,946.66

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1.5x scale

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.