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Finding the Fourth Proportional to 68,803.92, 94,978.44 and 46,478.16

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Solution

The fourth proportional to 68,803.92, 94,978.44 and 46,478.16 is: 64,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,803.92 : 94,978.44 = 46,478.16 : x
  2. Step 2: Convert to fraction form
    68,803.92/94,978.44 = 46,478.16/x
  3. Step 3: Cross multiply
    68,803.92x = 94,978.44 × 46,478.16
  4. Step 4: Simplify right side
    68,803.92x = 4,414,423,130.87
  5. Step 5: Solve for x
    x = 4,414,423,130.87/68,803.92
  6. Step 6: Final answer
    x = 64,159.47

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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.