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Finding the Fourth Proportional to 251,461.66, 347,006.52 and 142,573.32

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Solution

The fourth proportional to 251,461.66, 347,006.52 and 142,573.32 is: 196,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,461.66 : 347,006.52 = 142,573.32 : x
  2. Step 2: Convert to fraction form
    251,461.66/347,006.52 = 142,573.32/x
  3. Step 3: Cross multiply
    251,461.66x = 347,006.52 × 142,573.32
  4. Step 4: Simplify right side
    251,461.66x = 49,473,871,618.05
  5. Step 5: Solve for x
    x = 49,473,871,618.05/251,461.66
  6. Step 6: Final answer
    x = 196,745.19

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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.