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Finding the Fourth Proportional to 303,312.80, 454,969.20 and 92,923.40

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Solution

The fourth proportional to 303,312.80, 454,969.20 and 92,923.40 is: 139,385.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,312.80 : 454,969.20 = 92,923.40 : x
  2. Step 2: Convert to fraction form
    303,312.80/454,969.20 = 92,923.40/x
  3. Step 3: Cross multiply
    303,312.80x = 454,969.20 × 92,923.40
  4. Step 4: Simplify right side
    303,312.80x = 42,277,284,959.28
  5. Step 5: Solve for x
    x = 42,277,284,959.28/303,312.80
  6. Step 6: Final answer
    x = 139,385.10

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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.