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Finding the Fourth Proportional to 107,779.87, 148,736.25 and 62,484.11

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Solution

The fourth proportional to 107,779.87, 148,736.25 and 62,484.11 is: 86,228.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,779.87 : 148,736.25 = 62,484.11 : x
  2. Step 2: Convert to fraction form
    107,779.87/148,736.25 = 62,484.11/x
  3. Step 3: Cross multiply
    107,779.87x = 148,736.25 × 62,484.11
  4. Step 4: Simplify right side
    107,779.87x = 9,293,652,205.99
  5. Step 5: Solve for x
    x = 9,293,652,205.99/107,779.87
  6. Step 6: Final answer
    x = 86,228.09

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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.