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Finding the Fourth Proportional to 219,655.01, 329,489.76 and 75,559.38

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Solution

The fourth proportional to 219,655.01, 329,489.76 and 75,559.38 is: 113,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,655.01 : 329,489.76 = 75,559.38 : x
  2. Step 2: Convert to fraction form
    219,655.01/329,489.76 = 75,559.38/x
  3. Step 3: Cross multiply
    219,655.01x = 329,489.76 × 75,559.38
  4. Step 4: Simplify right side
    219,655.01x = 24,896,041,981.95
  5. Step 5: Solve for x
    x = 24,896,041,981.95/219,655.01
  6. Step 6: Final answer
    x = 113,341.56

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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.