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Finding the Fourth Proportional to 227,989.80, 341,985.48 and 70,217.40

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Solution

The fourth proportional to 227,989.80, 341,985.48 and 70,217.40 is: 105,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,989.80 : 341,985.48 = 70,217.40 : x
  2. Step 2: Convert to fraction form
    227,989.80/341,985.48 = 70,217.40/x
  3. Step 3: Cross multiply
    227,989.80x = 341,985.48 × 70,217.40
  4. Step 4: Simplify right side
    227,989.80x = 24,013,331,243.35
  5. Step 5: Solve for x
    x = 24,013,331,243.35/227,989.80
  6. Step 6: Final answer
    x = 105,326.34

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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.