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Finding the Fourth Proportional to 58,159.90, 87,215.01 and 22,112.74

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Solution

The fourth proportional to 58,159.90, 87,215.01 and 22,112.74 is: 33,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,159.90 : 87,215.01 = 22,112.74 : x
  2. Step 2: Convert to fraction form
    58,159.90/87,215.01 = 22,112.74/x
  3. Step 3: Cross multiply
    58,159.90x = 87,215.01 × 22,112.74
  4. Step 4: Simplify right side
    58,159.90x = 1,928,562,840.23
  5. Step 5: Solve for x
    x = 1,928,562,840.23/58,159.90
  6. Step 6: Final answer
    x = 33,159.67

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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.