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Finding the Fourth Proportional to 61,390.67, 92,059.18 and 30,977.11

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Solution

The fourth proportional to 61,390.67, 92,059.18 and 30,977.11 is: 46,452.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,390.67 : 92,059.18 = 30,977.11 : x
  2. Step 2: Convert to fraction form
    61,390.67/92,059.18 = 30,977.11/x
  3. Step 3: Cross multiply
    61,390.67x = 92,059.18 × 30,977.11
  4. Step 4: Simplify right side
    61,390.67x = 2,851,727,345.37
  5. Step 5: Solve for x
    x = 2,851,727,345.37/61,390.67
  6. Step 6: Final answer
    x = 46,452.13

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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.