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Finding the Fourth Proportional to 92,486.34, 138,746.82 and 29,303.88

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Solution

The fourth proportional to 92,486.34, 138,746.82 and 29,303.88 is: 43,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,486.34 : 138,746.82 = 29,303.88 : x
  2. Step 2: Convert to fraction form
    92,486.34/138,746.82 = 29,303.88/x
  3. Step 3: Cross multiply
    92,486.34x = 138,746.82 × 29,303.88
  4. Step 4: Simplify right side
    92,486.34x = 4,065,820,163.66
  5. Step 5: Solve for x
    x = 4,065,820,163.66/92,486.34
  6. Step 6: Final answer
    x = 43,961.30

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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.