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Finding the Fourth Proportional to 316,544.76, 436,831.86 and 173,314.04

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Solution

The fourth proportional to 316,544.76, 436,831.86 and 173,314.04 is: 239,173.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,544.76 : 436,831.86 = 173,314.04 : x
  2. Step 2: Convert to fraction form
    316,544.76/436,831.86 = 173,314.04/x
  3. Step 3: Cross multiply
    316,544.76x = 436,831.86 × 173,314.04
  4. Step 4: Simplify right side
    316,544.76x = 75,709,094,457.31
  5. Step 5: Solve for x
    x = 75,709,094,457.31/316,544.76
  6. Step 6: Final answer
    x = 239,173.43

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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.