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Finding the Fourth Proportional to 127,893.92, 176,491.68 and 71,303.84

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Solution

The fourth proportional to 127,893.92, 176,491.68 and 71,303.84 is: 98,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,893.92 : 176,491.68 = 71,303.84 : x
  2. Step 2: Convert to fraction form
    127,893.92/176,491.68 = 71,303.84/x
  3. Step 3: Cross multiply
    127,893.92x = 176,491.68 × 71,303.84
  4. Step 4: Simplify right side
    127,893.92x = 12,584,534,512.05
  5. Step 5: Solve for x
    x = 12,584,534,512.05/127,893.92
  6. Step 6: Final answer
    x = 98,398.22

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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.