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Finding the Fourth Proportional to 103,694.80, 155,564.16 and 58,737.28

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Solution

The fourth proportional to 103,694.80, 155,564.16 and 58,737.28 is: 88,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,694.80 : 155,564.16 = 58,737.28 : x
  2. Step 2: Convert to fraction form
    103,694.80/155,564.16 = 58,737.28/x
  3. Step 3: Cross multiply
    103,694.80x = 155,564.16 × 58,737.28
  4. Step 4: Simplify right side
    103,694.80x = 9,137,415,623.88
  5. Step 5: Solve for x
    x = 9,137,415,623.88/103,694.80
  6. Step 6: Final answer
    x = 88,118.36

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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.