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Finding the Fourth Proportional to 127,695.72, 176,140.22 and 91,828.92

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Solution

The fourth proportional to 127,695.72, 176,140.22 and 91,828.92 is: 126,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,695.72 : 176,140.22 = 91,828.92 : x
  2. Step 2: Convert to fraction form
    127,695.72/176,140.22 = 91,828.92/x
  3. Step 3: Cross multiply
    127,695.72x = 176,140.22 × 91,828.92
  4. Step 4: Simplify right side
    127,695.72x = 16,174,765,712.02
  5. Step 5: Solve for x
    x = 16,174,765,712.02/127,695.72
  6. Step 6: Final answer
    x = 126,666.47

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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.