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Finding the Fourth Proportional to 74,697.88, 112,090.56 and 41,445.76

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Solution

The fourth proportional to 74,697.88, 112,090.56 and 41,445.76 is: 62,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,697.88 : 112,090.56 = 41,445.76 : x
  2. Step 2: Convert to fraction form
    74,697.88/112,090.56 = 41,445.76/x
  3. Step 3: Cross multiply
    74,697.88x = 112,090.56 × 41,445.76
  4. Step 4: Simplify right side
    74,697.88x = 4,645,678,448.03
  5. Step 5: Solve for x
    x = 4,645,678,448.03/74,697.88
  6. Step 6: Final answer
    x = 62,192.91

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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.