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Finding the Fourth Proportional to 61,740.70, 92,657.90 and 40,673.55

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Solution

The fourth proportional to 61,740.70, 92,657.90 and 40,673.55 is: 61,041.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,740.70 : 92,657.90 = 40,673.55 : x
  2. Step 2: Convert to fraction form
    61,740.70/92,657.90 = 40,673.55/x
  3. Step 3: Cross multiply
    61,740.70x = 92,657.90 × 40,673.55
  4. Step 4: Simplify right side
    61,740.70x = 3,768,725,728.55
  5. Step 5: Solve for x
    x = 3,768,725,728.55/61,740.70
  6. Step 6: Final answer
    x = 61,041.19

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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.