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Finding the Fourth Proportional to 92,321.60, 138,482.37 and 29,186.01

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Solution

The fourth proportional to 92,321.60, 138,482.37 and 29,186.01 is: 43,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,321.60 : 138,482.37 = 29,186.01 : x
  2. Step 2: Convert to fraction form
    92,321.60/138,482.37 = 29,186.01/x
  3. Step 3: Cross multiply
    92,321.60x = 138,482.37 × 29,186.01
  4. Step 4: Simplify right side
    92,321.60x = 4,041,747,835.64
  5. Step 5: Solve for x
    x = 4,041,747,835.64/92,321.60
  6. Step 6: Final answer
    x = 43,779.01

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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.