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Finding the Fourth Proportional to 228,353.39, 315,428.88 and 175,294.07

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Solution

The fourth proportional to 228,353.39, 315,428.88 and 175,294.07 is: 242,137.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,353.39 : 315,428.88 = 175,294.07 : x
  2. Step 2: Convert to fraction form
    228,353.39/315,428.88 = 175,294.07/x
  3. Step 3: Cross multiply
    228,353.39x = 315,428.88 × 175,294.07
  4. Step 4: Simplify right side
    228,353.39x = 55,292,810,593.60
  5. Step 5: Solve for x
    x = 55,292,810,593.60/228,353.39
  6. Step 6: Final answer
    x = 242,137.03

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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.