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Finding the Fourth Proportional to 65,117.60, 97,676.40 and 59,091.20

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Solution

The fourth proportional to 65,117.60, 97,676.40 and 59,091.20 is: 88,636.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,117.60 : 97,676.40 = 59,091.20 : x
  2. Step 2: Convert to fraction form
    65,117.60/97,676.40 = 59,091.20/x
  3. Step 3: Cross multiply
    65,117.60x = 97,676.40 × 59,091.20
  4. Step 4: Simplify right side
    65,117.60x = 5,771,815,687.68
  5. Step 5: Solve for x
    x = 5,771,815,687.68/65,117.60
  6. Step 6: Final answer
    x = 88,636.80

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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.