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Finding the Fourth Proportional to 168,078.64, 252,040.20 and 62,895.28

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Solution

The fourth proportional to 168,078.64, 252,040.20 and 62,895.28 is: 94,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,078.64 : 252,040.20 = 62,895.28 : x
  2. Step 2: Convert to fraction form
    168,078.64/252,040.20 = 62,895.28/x
  3. Step 3: Cross multiply
    168,078.64x = 252,040.20 × 62,895.28
  4. Step 4: Simplify right side
    168,078.64x = 15,852,138,950.26
  5. Step 5: Solve for x
    x = 15,852,138,950.26/168,078.64
  6. Step 6: Final answer
    x = 94,313.82

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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.