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Finding the Fourth Proportional to 84,873.79, 117,140.26 and 49,085.56

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Solution

The fourth proportional to 84,873.79, 117,140.26 and 49,085.56 is: 67,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,873.79 : 117,140.26 = 49,085.56 : x
  2. Step 2: Convert to fraction form
    84,873.79/117,140.26 = 49,085.56/x
  3. Step 3: Cross multiply
    84,873.79x = 117,140.26 × 49,085.56
  4. Step 4: Simplify right side
    84,873.79x = 5,749,894,674.94
  5. Step 5: Solve for x
    x = 5,749,894,674.94/84,873.79
  6. Step 6: Final answer
    x = 67,746.42

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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.