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Finding the Fourth Proportional to 81,866.76, 112,975.95 and 46,056.81

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Solution

The fourth proportional to 81,866.76, 112,975.95 and 46,056.81 is: 63,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,866.76 : 112,975.95 = 46,056.81 : x
  2. Step 2: Convert to fraction form
    81,866.76/112,975.95 = 46,056.81/x
  3. Step 3: Cross multiply
    81,866.76x = 112,975.95 × 46,056.81
  4. Step 4: Simplify right side
    81,866.76x = 5,203,311,863.72
  5. Step 5: Solve for x
    x = 5,203,311,863.72/81,866.76
  6. Step 6: Final answer
    x = 63,558.30

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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.