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Finding the Fourth Proportional to 61,422.81, 92,128.91 and 37,400.91

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Solution

The fourth proportional to 61,422.81, 92,128.91 and 37,400.91 is: 56,098.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,422.81 : 92,128.91 = 37,400.91 : x
  2. Step 2: Convert to fraction form
    61,422.81/92,128.91 = 37,400.91/x
  3. Step 3: Cross multiply
    61,422.81x = 92,128.91 × 37,400.91
  4. Step 4: Simplify right side
    61,422.81x = 3,445,704,884.30
  5. Step 5: Solve for x
    x = 3,445,704,884.30/61,422.81
  6. Step 6: Final answer
    x = 56,098.13

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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.