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Finding the Fourth Proportional to 61,370.55, 84,581.25 and 45,427.32

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Solution

The fourth proportional to 61,370.55, 84,581.25 and 45,427.32 is: 62,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,370.55 : 84,581.25 = 45,427.32 : x
  2. Step 2: Convert to fraction form
    61,370.55/84,581.25 = 45,427.32/x
  3. Step 3: Cross multiply
    61,370.55x = 84,581.25 × 45,427.32
  4. Step 4: Simplify right side
    61,370.55x = 3,842,299,509.75
  5. Step 5: Solve for x
    x = 3,842,299,509.75/61,370.55
  6. Step 6: Final answer
    x = 62,608.20

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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.