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Finding the Fourth Proportional to 61,372.80, 92,001.60 and 48,038.40

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Solution

The fourth proportional to 61,372.80, 92,001.60 and 48,038.40 is: 72,012.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,372.80 : 92,001.60 = 48,038.40 : x
  2. Step 2: Convert to fraction form
    61,372.80/92,001.60 = 48,038.40/x
  3. Step 3: Cross multiply
    61,372.80x = 92,001.60 × 48,038.40
  4. Step 4: Simplify right side
    61,372.80x = 4,419,609,661.44
  5. Step 5: Solve for x
    x = 4,419,609,661.44/61,372.80
  6. Step 6: Final answer
    x = 72,012.51

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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.