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Finding the Fourth Proportional to 83,172.36, 124,669.44 and 59,407.83

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Solution

The fourth proportional to 83,172.36, 124,669.44 and 59,407.83 is: 89,048.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,172.36 : 124,669.44 = 59,407.83 : x
  2. Step 2: Convert to fraction form
    83,172.36/124,669.44 = 59,407.83/x
  3. Step 3: Cross multiply
    83,172.36x = 124,669.44 × 59,407.83
  4. Step 4: Simplify right side
    83,172.36x = 7,406,340,947.92
  5. Step 5: Solve for x
    x = 7,406,340,947.92/83,172.36
  6. Step 6: Final answer
    x = 89,048.11

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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.