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Finding the Fourth Proportional to 117,457.40, 176,205.30 and 38,550.20

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Solution

The fourth proportional to 117,457.40, 176,205.30 and 38,550.20 is: 57,831.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,457.40 : 176,205.30 = 38,550.20 : x
  2. Step 2: Convert to fraction form
    117,457.40/176,205.30 = 38,550.20/x
  3. Step 3: Cross multiply
    117,457.40x = 176,205.30 × 38,550.20
  4. Step 4: Simplify right side
    117,457.40x = 6,792,749,556.06
  5. Step 5: Solve for x
    x = 6,792,749,556.06/117,457.40
  6. Step 6: Final answer
    x = 57,831.60

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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.