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Finding the Fourth Proportional to 140,779.62, 211,237.83 and 61,883.64

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Solution

The fourth proportional to 140,779.62, 211,237.83 and 61,883.64 is: 92,855.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,779.62 : 211,237.83 = 61,883.64 : x
  2. Step 2: Convert to fraction form
    140,779.62/211,237.83 = 61,883.64/x
  3. Step 3: Cross multiply
    140,779.62x = 211,237.83 × 61,883.64
  4. Step 4: Simplify right side
    140,779.62x = 13,072,165,826.10
  5. Step 5: Solve for x
    x = 13,072,165,826.10/140,779.62
  6. Step 6: Final answer
    x = 92,855.53

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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.