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Finding the Fourth Proportional to 84,195.96, 116,234.16 and 61,509.48

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Solution

The fourth proportional to 84,195.96, 116,234.16 and 61,509.48 is: 84,915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,195.96 : 116,234.16 = 61,509.48 : x
  2. Step 2: Convert to fraction form
    84,195.96/116,234.16 = 61,509.48/x
  3. Step 3: Cross multiply
    84,195.96x = 116,234.16 × 61,509.48
  4. Step 4: Simplify right side
    84,195.96x = 7,149,502,739.84
  5. Step 5: Solve for x
    x = 7,149,502,739.84/84,195.96
  6. Step 6: Final answer
    x = 84,915.03

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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.