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Finding the Fourth Proportional to 58,169.53, 87,264.02 and 20,751.18

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Solution

The fourth proportional to 58,169.53, 87,264.02 and 20,751.18 is: 31,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,169.53 : 87,264.02 = 20,751.18 : x
  2. Step 2: Convert to fraction form
    58,169.53/87,264.02 = 20,751.18/x
  3. Step 3: Cross multiply
    58,169.53x = 87,264.02 × 20,751.18
  4. Step 4: Simplify right side
    58,169.53x = 1,810,831,386.54
  5. Step 5: Solve for x
    x = 1,810,831,386.54/58,169.53
  6. Step 6: Final answer
    x = 31,130.24

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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.