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Finding the Fourth Proportional to 68,651.18, 94,689.70 and 63,004.16

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Solution

The fourth proportional to 68,651.18, 94,689.70 and 63,004.16 is: 86,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,651.18 : 94,689.70 = 63,004.16 : x
  2. Step 2: Convert to fraction form
    68,651.18/94,689.70 = 63,004.16/x
  3. Step 3: Cross multiply
    68,651.18x = 94,689.70 × 63,004.16
  4. Step 4: Simplify right side
    68,651.18x = 5,965,845,009.15
  5. Step 5: Solve for x
    x = 5,965,845,009.15/68,651.18
  6. Step 6: Final answer
    x = 86,900.84

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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.