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Finding the Fourth Proportional to 61,992, 93,325.38 and 56,480.76

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Solution

The fourth proportional to 61,992, 93,325.38 and 56,480.76 is: 85,028.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,992 : 93,325.38 = 56,480.76 : x
  2. Step 2: Convert to fraction form
    61,992/93,325.38 = 56,480.76/x
  3. Step 3: Cross multiply
    61,992x = 93,325.38 × 56,480.76
  4. Step 4: Simplify right side
    61,992x = 5,271,088,389.69
  5. Step 5: Solve for x
    x = 5,271,088,389.69/61,992
  6. Step 6: Final answer
    x = 85,028.53

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.