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Finding the Fourth Proportional to 127,992.54, 176,628.51 and 70,632.39

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Solution

The fourth proportional to 127,992.54, 176,628.51 and 70,632.39 is: 97,472.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,992.54 : 176,628.51 = 70,632.39 : x
  2. Step 2: Convert to fraction form
    127,992.54/176,628.51 = 70,632.39/x
  3. Step 3: Cross multiply
    127,992.54x = 176,628.51 × 70,632.39
  4. Step 4: Simplify right side
    127,992.54x = 12,475,693,803.44
  5. Step 5: Solve for x
    x = 12,475,693,803.44/127,992.54
  6. Step 6: Final answer
    x = 97,472.04

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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.