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Finding the Fourth Proportional to 61,541.55, 92,312.31 and 19,424.90

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Solution

The fourth proportional to 61,541.55, 92,312.31 and 19,424.90 is: 29,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,541.55 : 92,312.31 = 19,424.90 : x
  2. Step 2: Convert to fraction form
    61,541.55/92,312.31 = 19,424.90/x
  3. Step 3: Cross multiply
    61,541.55x = 92,312.31 × 19,424.90
  4. Step 4: Simplify right side
    61,541.55x = 1,793,157,390.52
  5. Step 5: Solve for x
    x = 1,793,157,390.52/61,541.55
  6. Step 6: Final answer
    x = 29,137.35

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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.