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Finding the Fourth Proportional to 68,980.16, 95,117.28 and 46,585.28

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Solution

The fourth proportional to 68,980.16, 95,117.28 and 46,585.28 is: 64,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,980.16 : 95,117.28 = 46,585.28 : x
  2. Step 2: Convert to fraction form
    68,980.16/95,117.28 = 46,585.28/x
  3. Step 3: Cross multiply
    68,980.16x = 95,117.28 × 46,585.28
  4. Step 4: Simplify right side
    68,980.16x = 4,431,065,121.64
  5. Step 5: Solve for x
    x = 4,431,065,121.64/68,980.16
  6. Step 6: Final answer
    x = 64,236.81

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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.