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Finding the Fourth Proportional to 127,906.96, 176,509.20 and 70,551.58

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Solution

The fourth proportional to 127,906.96, 176,509.20 and 70,551.58 is: 97,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,906.96 : 176,509.20 = 70,551.58 : x
  2. Step 2: Convert to fraction form
    127,906.96/176,509.20 = 70,551.58/x
  3. Step 3: Cross multiply
    127,906.96x = 176,509.20 × 70,551.58
  4. Step 4: Simplify right side
    127,906.96x = 12,453,002,944.54
  5. Step 5: Solve for x
    x = 12,453,002,944.54/127,906.96
  6. Step 6: Final answer
    x = 97,359.85

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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.