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Finding the Fourth Proportional to 127,571.77, 176,070.63 and 73,889.47

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Solution

The fourth proportional to 127,571.77, 176,070.63 and 73,889.47 is: 101,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,571.77 : 176,070.63 = 73,889.47 : x
  2. Step 2: Convert to fraction form
    127,571.77/176,070.63 = 73,889.47/x
  3. Step 3: Cross multiply
    127,571.77x = 176,070.63 × 73,889.47
  4. Step 4: Simplify right side
    127,571.77x = 13,009,765,533.27
  5. Step 5: Solve for x
    x = 13,009,765,533.27/127,571.77
  6. Step 6: Final answer
    x = 101,979.97

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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.