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Finding the Fourth Proportional to 61,205.60, 91,808.40 and 46,443.35

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Solution

The fourth proportional to 61,205.60, 91,808.40 and 46,443.35 is: 69,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,205.60 : 91,808.40 = 46,443.35 : x
  2. Step 2: Convert to fraction form
    61,205.60/91,808.40 = 46,443.35/x
  3. Step 3: Cross multiply
    61,205.60x = 91,808.40 × 46,443.35
  4. Step 4: Simplify right side
    61,205.60x = 4,263,889,654.14
  5. Step 5: Solve for x
    x = 4,263,889,654.14/61,205.60
  6. Step 6: Final answer
    x = 69,665.03

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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.