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Finding the Fourth Proportional to 251,776.50, 346,789.70 and 193,521.83

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Solution

The fourth proportional to 251,776.50, 346,789.70 and 193,521.83 is: 266,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,776.50 : 346,789.70 = 193,521.83 : x
  2. Step 2: Convert to fraction form
    251,776.50/346,789.70 = 193,521.83/x
  3. Step 3: Cross multiply
    251,776.50x = 346,789.70 × 193,521.83
  4. Step 4: Simplify right side
    251,776.50x = 67,111,376,856.32
  5. Step 5: Solve for x
    x = 67,111,376,856.32/251,776.50
  6. Step 6: Final answer
    x = 266,551.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.