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Finding the Fourth Proportional to 303,914.40, 455,871.60 and 93,616.80

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Solution

The fourth proportional to 303,914.40, 455,871.60 and 93,616.80 is: 140,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,914.40 : 455,871.60 = 93,616.80 : x
  2. Step 2: Convert to fraction form
    303,914.40/455,871.60 = 93,616.80/x
  3. Step 3: Cross multiply
    303,914.40x = 455,871.60 × 93,616.80
  4. Step 4: Simplify right side
    303,914.40x = 42,677,240,402.88
  5. Step 5: Solve for x
    x = 42,677,240,402.88/303,914.40
  6. Step 6: Final answer
    x = 140,425.20

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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.