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Finding the Fourth Proportional to 126,673.84, 174,733.76 and 83,653.73

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Solution

The fourth proportional to 126,673.84, 174,733.76 and 83,653.73 is: 115,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,673.84 : 174,733.76 = 83,653.73 : x
  2. Step 2: Convert to fraction form
    126,673.84/174,733.76 = 83,653.73/x
  3. Step 3: Cross multiply
    126,673.84x = 174,733.76 × 83,653.73
  4. Step 4: Simplify right side
    126,673.84x = 14,617,130,301.09
  5. Step 5: Solve for x
    x = 14,617,130,301.09/126,673.84
  6. Step 6: Final answer
    x = 115,391.86

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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.