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Finding the Fourth Proportional to 127,803.83, 176,366.92 and 69,661.06

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Solution

The fourth proportional to 127,803.83, 176,366.92 and 69,661.06 is: 96,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,803.83 : 176,366.92 = 69,661.06 : x
  2. Step 2: Convert to fraction form
    127,803.83/176,366.92 = 69,661.06/x
  3. Step 3: Cross multiply
    127,803.83x = 176,366.92 × 69,661.06
  4. Step 4: Simplify right side
    127,803.83x = 12,285,906,596.14
  5. Step 5: Solve for x
    x = 12,285,906,596.14/127,803.83
  6. Step 6: Final answer
    x = 96,130.97

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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.