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Finding the Fourth Proportional to 61,077.44, 91,460.64 and 40,237.76

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Solution

The fourth proportional to 61,077.44, 91,460.64 and 40,237.76 is: 60,254.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,077.44 : 91,460.64 = 40,237.76 : x
  2. Step 2: Convert to fraction form
    61,077.44/91,460.64 = 40,237.76/x
  3. Step 3: Cross multiply
    61,077.44x = 91,460.64 × 40,237.76
  4. Step 4: Simplify right side
    61,077.44x = 3,680,171,281.77
  5. Step 5: Solve for x
    x = 3,680,171,281.77/61,077.44
  6. Step 6: Final answer
    x = 60,254.18

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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.