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Finding the Fourth Proportional to 251,953.65, 347,682.92 and 156,458.30

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Solution

The fourth proportional to 251,953.65, 347,682.92 and 156,458.30 is: 215,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,953.65 : 347,682.92 = 156,458.30 : x
  2. Step 2: Convert to fraction form
    251,953.65/347,682.92 = 156,458.30/x
  3. Step 3: Cross multiply
    251,953.65x = 347,682.92 × 156,458.30
  4. Step 4: Simplify right side
    251,953.65x = 54,397,876,081.53
  5. Step 5: Solve for x
    x = 54,397,876,081.53/251,953.65
  6. Step 6: Final answer
    x = 215,904.30

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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.