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Finding the Fourth Proportional to 71,267.61, 107,009.34 and 56,595.48

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Solution

The fourth proportional to 71,267.61, 107,009.34 and 56,595.48 is: 84,978.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,267.61 : 107,009.34 = 56,595.48 : x
  2. Step 2: Convert to fraction form
    71,267.61/107,009.34 = 56,595.48/x
  3. Step 3: Cross multiply
    71,267.61x = 107,009.34 × 56,595.48
  4. Step 4: Simplify right side
    71,267.61x = 6,056,244,961.78
  5. Step 5: Solve for x
    x = 6,056,244,961.78/71,267.61
  6. Step 6: Final answer
    x = 84,978.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.