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Finding the Fourth Proportional to 61,459.20, 85,846.05 and 61,459.20

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Solution

The fourth proportional to 61,459.20, 85,846.05 and 61,459.20 is: 85,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,459.20 : 85,846.05 = 61,459.20 : x
  2. Step 2: Convert to fraction form
    61,459.20/85,846.05 = 61,459.20/x
  3. Step 3: Cross multiply
    61,459.20x = 85,846.05 × 61,459.20
  4. Step 4: Simplify right side
    61,459.20x = 5,276,029,556.16
  5. Step 5: Solve for x
    x = 5,276,029,556.16/61,459.20
  6. Step 6: Final answer
    x = 85,846.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.