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Finding the Fourth Proportional to 127,891.59, 176,491.71 and 70,532.97

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Solution

The fourth proportional to 127,891.59, 176,491.71 and 70,532.97 is: 97,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,891.59 : 176,491.71 = 70,532.97 : x
  2. Step 2: Convert to fraction form
    127,891.59/176,491.71 = 70,532.97/x
  3. Step 3: Cross multiply
    127,891.59x = 176,491.71 × 70,532.97
  4. Step 4: Simplify right side
    127,891.59x = 12,448,484,486.68
  5. Step 5: Solve for x
    x = 12,448,484,486.68/127,891.59
  6. Step 6: Final answer
    x = 97,336.22

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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.