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Finding the Fourth Proportional to 81,880.53, 112,985.99 and 46,069.77

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Solution

The fourth proportional to 81,880.53, 112,985.99 and 46,069.77 is: 63,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,880.53 : 112,985.99 = 46,069.77 : x
  2. Step 2: Convert to fraction form
    81,880.53/112,985.99 = 46,069.77/x
  3. Step 3: Cross multiply
    81,880.53x = 112,985.99 × 46,069.77
  4. Step 4: Simplify right side
    81,880.53x = 5,205,238,620.86
  5. Step 5: Solve for x
    x = 5,205,238,620.86/81,880.53
  6. Step 6: Final answer
    x = 63,571.14

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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.