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Finding the Fourth Proportional to 59,980.80, 89,852.40 and 52,593.60

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Solution

The fourth proportional to 59,980.80, 89,852.40 and 52,593.60 is: 78,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,980.80 : 89,852.40 = 52,593.60 : x
  2. Step 2: Convert to fraction form
    59,980.80/89,852.40 = 52,593.60/x
  3. Step 3: Cross multiply
    59,980.80x = 89,852.40 × 52,593.60
  4. Step 4: Simplify right side
    59,980.80x = 4,725,661,184.64
  5. Step 5: Solve for x
    x = 4,725,661,184.64/59,980.80
  6. Step 6: Final answer
    x = 78,786.23

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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.