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Finding the Fourth Proportional to 62,151.10, 85,739.13 and 42,014.98

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Solution

The fourth proportional to 62,151.10, 85,739.13 and 42,014.98 is: 57,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,151.10 : 85,739.13 = 42,014.98 : x
  2. Step 2: Convert to fraction form
    62,151.10/85,739.13 = 42,014.98/x
  3. Step 3: Cross multiply
    62,151.10x = 85,739.13 × 42,014.98
  4. Step 4: Simplify right side
    62,151.10x = 3,602,327,832.17
  5. Step 5: Solve for x
    x = 3,602,327,832.17/62,151.10
  6. Step 6: Final answer
    x = 57,960.81

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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.