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Finding the Fourth Proportional to 58,259.70, 87,201.55 and 30,141.02

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Solution

The fourth proportional to 58,259.70, 87,201.55 and 30,141.02 is: 45,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,259.70 : 87,201.55 = 30,141.02 : x
  2. Step 2: Convert to fraction form
    58,259.70/87,201.55 = 30,141.02/x
  3. Step 3: Cross multiply
    58,259.70x = 87,201.55 × 30,141.02
  4. Step 4: Simplify right side
    58,259.70x = 2,628,343,662.58
  5. Step 5: Solve for x
    x = 2,628,343,662.58/58,259.70
  6. Step 6: Final answer
    x = 45,114.27

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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.