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Finding the Fourth Proportional to 228,338.77, 342,470.95 and 76,603.00

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Solution

The fourth proportional to 228,338.77, 342,470.95 and 76,603.00 is: 114,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,338.77 : 342,470.95 = 76,603.00 : x
  2. Step 2: Convert to fraction form
    228,338.77/342,470.95 = 76,603.00/x
  3. Step 3: Cross multiply
    228,338.77x = 342,470.95 × 76,603.00
  4. Step 4: Simplify right side
    228,338.77x = 26,234,302,706.69
  5. Step 5: Solve for x
    x = 26,234,302,706.69/228,338.77
  6. Step 6: Final answer
    x = 114,892.02

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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.