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Finding the Fourth Proportional to 65,182.60, 97,658.70 and 57,809.80

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Solution

The fourth proportional to 65,182.60, 97,658.70 and 57,809.80 is: 86,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,182.60 : 97,658.70 = 57,809.80 : x
  2. Step 2: Convert to fraction form
    65,182.60/97,658.70 = 57,809.80/x
  3. Step 3: Cross multiply
    65,182.60x = 97,658.70 × 57,809.80
  4. Step 4: Simplify right side
    65,182.60x = 5,645,629,915.26
  5. Step 5: Solve for x
    x = 5,645,629,915.26/65,182.60
  6. Step 6: Final answer
    x = 86,612.53

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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.