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Finding the Fourth Proportional to 58,083.72, 87,154.80 and 43,322.28

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Solution

The fourth proportional to 58,083.72, 87,154.80 and 43,322.28 is: 65,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,083.72 : 87,154.80 = 43,322.28 : x
  2. Step 2: Convert to fraction form
    58,083.72/87,154.80 = 43,322.28/x
  3. Step 3: Cross multiply
    58,083.72x = 87,154.80 × 43,322.28
  4. Step 4: Simplify right side
    58,083.72x = 3,775,744,648.94
  5. Step 5: Solve for x
    x = 3,775,744,648.94/58,083.72
  6. Step 6: Final answer
    x = 65,005.21

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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.