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Finding the Fourth Proportional to 84,026.96, 115,868.04 and 75,564.08

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Solution

The fourth proportional to 84,026.96, 115,868.04 and 75,564.08 is: 104,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,026.96 : 115,868.04 = 75,564.08 : x
  2. Step 2: Convert to fraction form
    84,026.96/115,868.04 = 75,564.08/x
  3. Step 3: Cross multiply
    84,026.96x = 115,868.04 × 75,564.08
  4. Step 4: Simplify right side
    84,026.96x = 8,755,461,844.00
  5. Step 5: Solve for x
    x = 8,755,461,844.00/84,026.96
  6. Step 6: Final answer
    x = 104,198.25

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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.