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Finding the Fourth Proportional to 251,009.76, 346,395.88 and 137,834.94

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Solution

The fourth proportional to 251,009.76, 346,395.88 and 137,834.94 is: 190,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,009.76 : 346,395.88 = 137,834.94 : x
  2. Step 2: Convert to fraction form
    251,009.76/346,395.88 = 137,834.94/x
  3. Step 3: Cross multiply
    251,009.76x = 346,395.88 × 137,834.94
  4. Step 4: Simplify right side
    251,009.76x = 47,745,455,336.05
  5. Step 5: Solve for x
    x = 47,745,455,336.05/251,009.76
  6. Step 6: Final answer
    x = 190,213.54

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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.