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Finding the Fourth Proportional to 84,212.01, 116,212.79 and 45,971.60

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Solution

The fourth proportional to 84,212.01, 116,212.79 and 45,971.60 is: 63,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,212.01 : 116,212.79 = 45,971.60 : x
  2. Step 2: Convert to fraction form
    84,212.01/116,212.79 = 45,971.60/x
  3. Step 3: Cross multiply
    84,212.01x = 116,212.79 × 45,971.60
  4. Step 4: Simplify right side
    84,212.01x = 5,342,487,085.84
  5. Step 5: Solve for x
    x = 5,342,487,085.84/84,212.01
  6. Step 6: Final answer
    x = 63,440.92

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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.