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Finding the Fourth Proportional to 89,866.70, 124,055.82 and 58,051.10

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Solution

The fourth proportional to 89,866.70, 124,055.82 and 58,051.10 is: 80,136.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,866.70 : 124,055.82 = 58,051.10 : x
  2. Step 2: Convert to fraction form
    89,866.70/124,055.82 = 58,051.10/x
  3. Step 3: Cross multiply
    89,866.70x = 124,055.82 × 58,051.10
  4. Step 4: Simplify right side
    89,866.70x = 7,201,576,812.40
  5. Step 5: Solve for x
    x = 7,201,576,812.40/89,866.70
  6. Step 6: Final answer
    x = 80,136.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.