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Finding the Fourth Proportional to 81,886.38, 113,009.85 and 46,074.30

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Solution

The fourth proportional to 81,886.38, 113,009.85 and 46,074.30 is: 63,586.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,886.38 : 113,009.85 = 46,074.30 : x
  2. Step 2: Convert to fraction form
    81,886.38/113,009.85 = 46,074.30/x
  3. Step 3: Cross multiply
    81,886.38x = 113,009.85 × 46,074.30
  4. Step 4: Simplify right side
    81,886.38x = 5,206,849,731.86
  5. Step 5: Solve for x
    x = 5,206,849,731.86/81,886.38
  6. Step 6: Final answer
    x = 63,586.27

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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.