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Finding the Fourth Proportional to 57,261, 79,020.18 and 32,110.50

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Solution

The fourth proportional to 57,261, 79,020.18 and 32,110.50 is: 44,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,261 : 79,020.18 = 32,110.50 : x
  2. Step 2: Convert to fraction form
    57,261/79,020.18 = 32,110.50/x
  3. Step 3: Cross multiply
    57,261x = 79,020.18 × 32,110.50
  4. Step 4: Simplify right side
    57,261x = 2,537,377,489.89
  5. Step 5: Solve for x
    x = 2,537,377,489.89/57,261
  6. Step 6: Final answer
    x = 44,312.49

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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.