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Finding the Fourth Proportional to 101,812.44, 152,562.74 and 42,615.86

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Solution

The fourth proportional to 101,812.44, 152,562.74 and 42,615.86 is: 63,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,812.44 : 152,562.74 = 42,615.86 : x
  2. Step 2: Convert to fraction form
    101,812.44/152,562.74 = 42,615.86/x
  3. Step 3: Cross multiply
    101,812.44x = 152,562.74 × 42,615.86
  4. Step 4: Simplify right side
    101,812.44x = 6,501,592,369.06
  5. Step 5: Solve for x
    x = 6,501,592,369.06/101,812.44
  6. Step 6: Final answer
    x = 63,858.53

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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.