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Finding the Fourth Proportional to 61,709.77, 85,158.87 and 34,851.71

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Solution

The fourth proportional to 61,709.77, 85,158.87 and 34,851.71 is: 48,095.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,709.77 : 85,158.87 = 34,851.71 : x
  2. Step 2: Convert to fraction form
    61,709.77/85,158.87 = 34,851.71/x
  3. Step 3: Cross multiply
    61,709.77x = 85,158.87 × 34,851.71
  4. Step 4: Simplify right side
    61,709.77x = 2,967,932,241.17
  5. Step 5: Solve for x
    x = 2,967,932,241.17/61,709.77
  6. Step 6: Final answer
    x = 48,095.01

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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.