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Finding the Fourth Proportional to 60,655.99, 91,000.47 and 34,379.20

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Solution

The fourth proportional to 60,655.99, 91,000.47 and 34,379.20 is: 51,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,655.99 : 91,000.47 = 34,379.20 : x
  2. Step 2: Convert to fraction form
    60,655.99/91,000.47 = 34,379.20/x
  3. Step 3: Cross multiply
    60,655.99x = 91,000.47 × 34,379.20
  4. Step 4: Simplify right side
    60,655.99x = 3,128,523,358.22
  5. Step 5: Solve for x
    x = 3,128,523,358.22/60,655.99
  6. Step 6: Final answer
    x = 51,578.14

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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.