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Finding the Fourth Proportional to 61,376.67, 84,703.30 and 40,923.45

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Solution

The fourth proportional to 61,376.67, 84,703.30 and 40,923.45 is: 56,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,376.67 : 84,703.30 = 40,923.45 : x
  2. Step 2: Convert to fraction form
    61,376.67/84,703.30 = 40,923.45/x
  3. Step 3: Cross multiply
    61,376.67x = 84,703.30 × 40,923.45
  4. Step 4: Simplify right side
    61,376.67x = 3,466,351,160.08
  5. Step 5: Solve for x
    x = 3,466,351,160.08/61,376.67
  6. Step 6: Final answer
    x = 56,476.69

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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.