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Finding the Fourth Proportional to 84,790.79, 116,970.85 and 50,782.94

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Solution

The fourth proportional to 84,790.79, 116,970.85 and 50,782.94 is: 70,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,790.79 : 116,970.85 = 50,782.94 : x
  2. Step 2: Convert to fraction form
    84,790.79/116,970.85 = 50,782.94/x
  3. Step 3: Cross multiply
    84,790.79x = 116,970.85 × 50,782.94
  4. Step 4: Simplify right side
    84,790.79x = 5,940,123,657.30
  5. Step 5: Solve for x
    x = 5,940,123,657.30/84,790.79
  6. Step 6: Final answer
    x = 70,056.24

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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.