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Finding the Fourth Proportional to 81,963.63, 113,108.67 and 46,157.13

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Solution

The fourth proportional to 81,963.63, 113,108.67 and 46,157.13 is: 63,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,963.63 : 113,108.67 = 46,157.13 : x
  2. Step 2: Convert to fraction form
    81,963.63/113,108.67 = 46,157.13/x
  3. Step 3: Cross multiply
    81,963.63x = 113,108.67 × 46,157.13
  4. Step 4: Simplify right side
    81,963.63x = 5,220,771,585.32
  5. Step 5: Solve for x
    x = 5,220,771,585.32/81,963.63
  6. Step 6: Final answer
    x = 63,696.20

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1.5x scale

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.