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Finding the Fourth Proportional to 127,551.79, 176,021.54 and 70,963.21

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Solution

The fourth proportional to 127,551.79, 176,021.54 and 70,963.21 is: 97,929.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,551.79 : 176,021.54 = 70,963.21 : x
  2. Step 2: Convert to fraction form
    127,551.79/176,021.54 = 70,963.21/x
  3. Step 3: Cross multiply
    127,551.79x = 176,021.54 × 70,963.21
  4. Step 4: Simplify right side
    127,551.79x = 12,491,053,507.54
  5. Step 5: Solve for x
    x = 12,491,053,507.54/127,551.79
  6. Step 6: Final answer
    x = 97,929.27

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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.