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Finding the Fourth Proportional to 341,338.13, 512,007.20 and 92,020.13

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Solution

The fourth proportional to 341,338.13, 512,007.20 and 92,020.13 is: 138,030.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,338.13 : 512,007.20 = 92,020.13 : x
  2. Step 2: Convert to fraction form
    341,338.13/512,007.20 = 92,020.13/x
  3. Step 3: Cross multiply
    341,338.13x = 512,007.20 × 92,020.13
  4. Step 4: Simplify right side
    341,338.13x = 47,114,966,084.80
  5. Step 5: Solve for x
    x = 47,114,966,084.80/341,338.13
  6. Step 6: Final answer
    x = 138,030.19

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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.