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Finding the Fourth Proportional to 97,700.70, 146,599.65 and 38,538.30

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Solution

The fourth proportional to 97,700.70, 146,599.65 and 38,538.30 is: 57,826.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,700.70 : 146,599.65 = 38,538.30 : x
  2. Step 2: Convert to fraction form
    97,700.70/146,599.65 = 38,538.30/x
  3. Step 3: Cross multiply
    97,700.70x = 146,599.65 × 38,538.30
  4. Step 4: Simplify right side
    97,700.70x = 5,649,701,291.60
  5. Step 5: Solve for x
    x = 5,649,701,291.60/97,700.70
  6. Step 6: Final answer
    x = 57,826.62

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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.