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Finding the Fourth Proportional to 74,035.02, 110,874.60 and 42,349.02

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Solution

The fourth proportional to 74,035.02, 110,874.60 and 42,349.02 is: 63,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,035.02 : 110,874.60 = 42,349.02 : x
  2. Step 2: Convert to fraction form
    74,035.02/110,874.60 = 42,349.02/x
  3. Step 3: Cross multiply
    74,035.02x = 110,874.60 × 42,349.02
  4. Step 4: Simplify right side
    74,035.02x = 4,695,430,652.89
  5. Step 5: Solve for x
    x = 4,695,430,652.89/74,035.02
  6. Step 6: Final answer
    x = 63,421.75

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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.