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Finding the Fourth Proportional to 84,357.52, 116,337.96 and 69,994.60

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Solution

The fourth proportional to 84,357.52, 116,337.96 and 69,994.60 is: 96,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,357.52 : 116,337.96 = 69,994.60 : x
  2. Step 2: Convert to fraction form
    84,357.52/116,337.96 = 69,994.60/x
  3. Step 3: Cross multiply
    84,357.52x = 116,337.96 × 69,994.60
  4. Step 4: Simplify right side
    84,357.52x = 8,143,028,975.02
  5. Step 5: Solve for x
    x = 8,143,028,975.02/84,357.52
  6. Step 6: Final answer
    x = 96,529.97

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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.