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Finding the Fourth Proportional to 116,488.80, 174,470.60 and 81,584.24

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Solution

The fourth proportional to 116,488.80, 174,470.60 and 81,584.24 is: 122,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,488.80 : 174,470.60 = 81,584.24 : x
  2. Step 2: Convert to fraction form
    116,488.80/174,470.60 = 81,584.24/x
  3. Step 3: Cross multiply
    116,488.80x = 174,470.60 × 81,584.24
  4. Step 4: Simplify right side
    116,488.80x = 14,234,051,303.34
  5. Step 5: Solve for x
    x = 14,234,051,303.34/116,488.80
  6. Step 6: Final answer
    x = 122,192.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.