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Finding the Fourth Proportional to 80,313, 110,833.54 and 46,781.16

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Solution

The fourth proportional to 80,313, 110,833.54 and 46,781.16 is: 64,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,313 : 110,833.54 = 46,781.16 : x
  2. Step 2: Convert to fraction form
    80,313/110,833.54 = 46,781.16/x
  3. Step 3: Cross multiply
    80,313x = 110,833.54 × 46,781.16
  4. Step 4: Simplify right side
    80,313x = 5,184,921,568.11
  5. Step 5: Solve for x
    x = 5,184,921,568.11/80,313
  6. Step 6: Final answer
    x = 64,558.93

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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.