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Finding the Fourth Proportional to 122,054.60, 168,322.96 and 83,746.56

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Solution

The fourth proportional to 122,054.60, 168,322.96 and 83,746.56 is: 115,493.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,054.60 : 168,322.96 = 83,746.56 : x
  2. Step 2: Convert to fraction form
    122,054.60/168,322.96 = 83,746.56/x
  3. Step 3: Cross multiply
    122,054.60x = 168,322.96 × 83,746.56
  4. Step 4: Simplify right side
    122,054.60x = 14,096,468,658.10
  5. Step 5: Solve for x
    x = 14,096,468,658.10/122,054.60
  6. Step 6: Final answer
    x = 115,493.14

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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.