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Finding the Fourth Proportional to 61,681.71, 92,559.48 and 56,662.55

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Solution

The fourth proportional to 61,681.71, 92,559.48 and 56,662.55 is: 85,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,681.71 : 92,559.48 = 56,662.55 : x
  2. Step 2: Convert to fraction form
    61,681.71/92,559.48 = 56,662.55/x
  3. Step 3: Cross multiply
    61,681.71x = 92,559.48 × 56,662.55
  4. Step 4: Simplify right side
    61,681.71x = 5,244,656,163.47
  5. Step 5: Solve for x
    x = 5,244,656,163.47/61,681.71
  6. Step 6: Final answer
    x = 85,027.74

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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.