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Finding the Fourth Proportional to 127,818, 176,321.75 and 97,550.60

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Solution

The fourth proportional to 127,818, 176,321.75 and 97,550.60 is: 134,568.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,818 : 176,321.75 = 97,550.60 : x
  2. Step 2: Convert to fraction form
    127,818/176,321.75 = 97,550.60/x
  3. Step 3: Cross multiply
    127,818x = 176,321.75 × 97,550.60
  4. Step 4: Simplify right side
    127,818x = 17,200,291,136.19
  5. Step 5: Solve for x
    x = 17,200,291,136.19/127,818
  6. Step 6: Final answer
    x = 134,568.61

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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.