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Finding the Fourth Proportional to 84,795.64, 127,218.96 and 51,098.22

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Solution

The fourth proportional to 84,795.64, 127,218.96 and 51,098.22 is: 76,662.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,795.64 : 127,218.96 = 51,098.22 : x
  2. Step 2: Convert to fraction form
    84,795.64/127,218.96 = 51,098.22/x
  3. Step 3: Cross multiply
    84,795.64x = 127,218.96 × 51,098.22
  4. Step 4: Simplify right side
    84,795.64x = 6,500,662,406.25
  5. Step 5: Solve for x
    x = 6,500,662,406.25/84,795.64
  6. Step 6: Final answer
    x = 76,662.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.