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Finding the Fourth Proportional to 87,460.56, 130,893.57 and 65,218.77

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Solution

The fourth proportional to 87,460.56, 130,893.57 and 65,218.77 is: 97,606.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,460.56 : 130,893.57 = 65,218.77 : x
  2. Step 2: Convert to fraction form
    87,460.56/130,893.57 = 65,218.77/x
  3. Step 3: Cross multiply
    87,460.56x = 130,893.57 × 65,218.77
  4. Step 4: Simplify right side
    87,460.56x = 8,536,717,636.31
  5. Step 5: Solve for x
    x = 8,536,717,636.31/87,460.56
  6. Step 6: Final answer
    x = 97,606.48

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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.