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Finding the Fourth Proportional to 55,903.62, 77,152.42 and 41,731.86

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Solution

The fourth proportional to 55,903.62, 77,152.42 and 41,731.86 is: 57,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.62 : 77,152.42 = 41,731.86 : x
  2. Step 2: Convert to fraction form
    55,903.62/77,152.42 = 41,731.86/x
  3. Step 3: Cross multiply
    55,903.62x = 77,152.42 × 41,731.86
  4. Step 4: Simplify right side
    55,903.62x = 3,219,713,990.10
  5. Step 5: Solve for x
    x = 3,219,713,990.10/55,903.62
  6. Step 6: Final answer
    x = 57,594.02

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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.