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Finding the Fourth Proportional to 317,802.16, 438,568.86 and 174,558.52

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Solution

The fourth proportional to 317,802.16, 438,568.86 and 174,558.52 is: 240,891.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,802.16 : 438,568.86 = 174,558.52 : x
  2. Step 2: Convert to fraction form
    317,802.16/438,568.86 = 174,558.52/x
  3. Step 3: Cross multiply
    317,802.16x = 438,568.86 × 174,558.52
  4. Step 4: Simplify right side
    317,802.16x = 76,555,931,119.69
  5. Step 5: Solve for x
    x = 76,555,931,119.69/317,802.16
  6. Step 6: Final answer
    x = 240,891.79

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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.