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Finding the Fourth Proportional to 67,771.95, 93,472.54 and 40,886.43

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Solution

The fourth proportional to 67,771.95, 93,472.54 and 40,886.43 is: 56,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,771.95 : 93,472.54 = 40,886.43 : x
  2. Step 2: Convert to fraction form
    67,771.95/93,472.54 = 40,886.43/x
  3. Step 3: Cross multiply
    67,771.95x = 93,472.54 × 40,886.43
  4. Step 4: Simplify right side
    67,771.95x = 3,821,758,463.63
  5. Step 5: Solve for x
    x = 3,821,758,463.63/67,771.95
  6. Step 6: Final answer
    x = 56,391.45

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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.