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Finding the Fourth Proportional to 170,464.64, 255,696.74 and 45,805.64

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Solution

The fourth proportional to 170,464.64, 255,696.74 and 45,805.64 is: 68,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,464.64 : 255,696.74 = 45,805.64 : x
  2. Step 2: Convert to fraction form
    170,464.64/255,696.74 = 45,805.64/x
  3. Step 3: Cross multiply
    170,464.64x = 255,696.74 × 45,805.64
  4. Step 4: Simplify right side
    170,464.64x = 11,712,352,821.61
  5. Step 5: Solve for x
    x = 11,712,352,821.61/170,464.64
  6. Step 6: Final answer
    x = 68,708.40

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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.