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Finding the Fourth Proportional to 74,302.01, 102,536.76 and 42,471.59

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Solution

The fourth proportional to 74,302.01, 102,536.76 and 42,471.59 is: 58,610.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,302.01 : 102,536.76 = 42,471.59 : x
  2. Step 2: Convert to fraction form
    74,302.01/102,536.76 = 42,471.59/x
  3. Step 3: Cross multiply
    74,302.01x = 102,536.76 × 42,471.59
  4. Step 4: Simplify right side
    74,302.01x = 4,354,899,486.99
  5. Step 5: Solve for x
    x = 4,354,899,486.99/74,302.01
  6. Step 6: Final answer
    x = 58,610.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.