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Finding the Fourth Proportional to 346,098.88, 519,231.87 and 129,959.38

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Solution

The fourth proportional to 346,098.88, 519,231.87 and 129,959.38 is: 194,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,098.88 : 519,231.87 = 129,959.38 : x
  2. Step 2: Convert to fraction form
    346,098.88/519,231.87 = 129,959.38/x
  3. Step 3: Cross multiply
    346,098.88x = 519,231.87 × 129,959.38
  4. Step 4: Simplify right side
    346,098.88x = 67,479,048,655.48
  5. Step 5: Solve for x
    x = 67,479,048,655.48/346,098.88
  6. Step 6: Final answer
    x = 194,970.44

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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.