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Finding the Fourth Proportional to 107,191.79, 147,913.99 and 61,884.39

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Solution

The fourth proportional to 107,191.79, 147,913.99 and 61,884.39 is: 85,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,191.79 : 147,913.99 = 61,884.39 : x
  2. Step 2: Convert to fraction form
    107,191.79/147,913.99 = 61,884.39/x
  3. Step 3: Cross multiply
    107,191.79x = 147,913.99 × 61,884.39
  4. Step 4: Simplify right side
    107,191.79x = 9,153,567,043.62
  5. Step 5: Solve for x
    x = 9,153,567,043.62/107,191.79
  6. Step 6: Final answer
    x = 85,394.30

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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.