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Finding the Fourth Proportional to 67,758.63, 93,509.34 and 40,895.89

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Solution

The fourth proportional to 67,758.63, 93,509.34 and 40,895.89 is: 56,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,758.63 : 93,509.34 = 40,895.89 : x
  2. Step 2: Convert to fraction form
    67,758.63/93,509.34 = 40,895.89/x
  3. Step 3: Cross multiply
    67,758.63x = 93,509.34 × 40,895.89
  4. Step 4: Simplify right side
    67,758.63x = 3,824,147,295.48
  5. Step 5: Solve for x
    x = 3,824,147,295.48/67,758.63
  6. Step 6: Final answer
    x = 56,437.79

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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.