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Finding the Fourth Proportional to 302,910.90, 454,329.90 and 125,399.40

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Solution

The fourth proportional to 302,910.90, 454,329.90 and 125,399.40 is: 188,084.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,910.90 : 454,329.90 = 125,399.40 : x
  2. Step 2: Convert to fraction form
    302,910.90/454,329.90 = 125,399.40/x
  3. Step 3: Cross multiply
    302,910.90x = 454,329.90 × 125,399.40
  4. Step 4: Simplify right side
    302,910.90x = 56,972,696,862.06
  5. Step 5: Solve for x
    x = 56,972,696,862.06/302,910.90
  6. Step 6: Final answer
    x = 188,084.01

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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.