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Finding the Fourth Proportional to 61,487.60, 92,217.55 and 40,133.59

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Solution

The fourth proportional to 61,487.60, 92,217.55 and 40,133.59 is: 60,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,487.60 : 92,217.55 = 40,133.59 : x
  2. Step 2: Convert to fraction form
    61,487.60/92,217.55 = 40,133.59/x
  3. Step 3: Cross multiply
    61,487.60x = 92,217.55 × 40,133.59
  4. Step 4: Simplify right side
    61,487.60x = 3,701,021,342.50
  5. Step 5: Solve for x
    x = 3,701,021,342.50/61,487.60
  6. Step 6: Final answer
    x = 60,191.34

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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.