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Finding the Fourth Proportional to 341,338.50, 512,007.75 and 92,020.50

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Solution

The fourth proportional to 341,338.50, 512,007.75 and 92,020.50 is: 138,030.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,338.50 : 512,007.75 = 92,020.50 : x
  2. Step 2: Convert to fraction form
    341,338.50/512,007.75 = 92,020.50/x
  3. Step 3: Cross multiply
    341,338.50x = 512,007.75 × 92,020.50
  4. Step 4: Simplify right side
    341,338.50x = 47,115,209,158.88
  5. Step 5: Solve for x
    x = 47,115,209,158.88/341,338.50
  6. Step 6: Final answer
    x = 138,030.75

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1.5x scale

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.