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Finding the Fourth Proportional to 64,750.20, 97,330.10 and 61,063.80

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Solution

The fourth proportional to 64,750.20, 97,330.10 and 61,063.80 is: 91,788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,750.20 : 97,330.10 = 61,063.80 : x
  2. Step 2: Convert to fraction form
    64,750.20/97,330.10 = 61,063.80/x
  3. Step 3: Cross multiply
    64,750.20x = 97,330.10 × 61,063.80
  4. Step 4: Simplify right side
    64,750.20x = 5,943,345,760.38
  5. Step 5: Solve for x
    x = 5,943,345,760.38/64,750.20
  6. Step 6: Final answer
    x = 91,788.84

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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.