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Finding the Fourth Proportional to 211,893.54, 292,415.50 and 115,098.29

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Solution

The fourth proportional to 211,893.54, 292,415.50 and 115,098.29 is: 158,836.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,893.54 : 292,415.50 = 115,098.29 : x
  2. Step 2: Convert to fraction form
    211,893.54/292,415.50 = 115,098.29/x
  3. Step 3: Cross multiply
    211,893.54x = 292,415.50 × 115,098.29
  4. Step 4: Simplify right side
    211,893.54x = 33,656,522,557.42
  5. Step 5: Solve for x
    x = 33,656,522,557.42/211,893.54
  6. Step 6: Final answer
    x = 158,836.94

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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.