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Finding the Fourth Proportional to 81,322.90, 112,204.22 and 46,859.16

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Solution

The fourth proportional to 81,322.90, 112,204.22 and 46,859.16 is: 64,653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,322.90 : 112,204.22 = 46,859.16 : x
  2. Step 2: Convert to fraction form
    81,322.90/112,204.22 = 46,859.16/x
  3. Step 3: Cross multiply
    81,322.90x = 112,204.22 × 46,859.16
  4. Step 4: Simplify right side
    81,322.90x = 5,257,795,497.66
  5. Step 5: Solve for x
    x = 5,257,795,497.66/81,322.90
  6. Step 6: Final answer
    x = 64,653.32

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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.