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Finding the Fourth Proportional to 61,713.01, 85,100.25 and 52,790.05

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Solution

The fourth proportional to 61,713.01, 85,100.25 and 52,790.05 is: 72,795.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,713.01 : 85,100.25 = 52,790.05 : x
  2. Step 2: Convert to fraction form
    61,713.01/85,100.25 = 52,790.05/x
  3. Step 3: Cross multiply
    61,713.01x = 85,100.25 × 52,790.05
  4. Step 4: Simplify right side
    61,713.01x = 4,492,446,452.51
  5. Step 5: Solve for x
    x = 4,492,446,452.51/61,713.01
  6. Step 6: Final answer
    x = 72,795.78

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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.