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Finding the Fourth Proportional to 101,372.93, 151,960.08 and 56,415.74

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Solution

The fourth proportional to 101,372.93, 151,960.08 and 56,415.74 is: 84,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,372.93 : 151,960.08 = 56,415.74 : x
  2. Step 2: Convert to fraction form
    101,372.93/151,960.08 = 56,415.74/x
  3. Step 3: Cross multiply
    101,372.93x = 151,960.08 × 56,415.74
  4. Step 4: Simplify right side
    101,372.93x = 8,572,939,815.42
  5. Step 5: Solve for x
    x = 8,572,939,815.42/101,372.93
  6. Step 6: Final answer
    x = 84,568.34

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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.