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Finding the Fourth Proportional to 228,503.02, 315,333.90 and 127,901.02

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Solution

The fourth proportional to 228,503.02, 315,333.90 and 127,901.02 is: 176,503.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,503.02 : 315,333.90 = 127,901.02 : x
  2. Step 2: Convert to fraction form
    228,503.02/315,333.90 = 127,901.02/x
  3. Step 3: Cross multiply
    228,503.02x = 315,333.90 × 127,901.02
  4. Step 4: Simplify right side
    228,503.02x = 40,331,527,450.58
  5. Step 5: Solve for x
    x = 40,331,527,450.58/228,503.02
  6. Step 6: Final answer
    x = 176,503.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.