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Finding the Fourth Proportional to 61,877.70, 92,707.20 and 57,941.10

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Solution

The fourth proportional to 61,877.70, 92,707.20 and 57,941.10 is: 86,809.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,877.70 : 92,707.20 = 57,941.10 : x
  2. Step 2: Convert to fraction form
    61,877.70/92,707.20 = 57,941.10/x
  3. Step 3: Cross multiply
    61,877.70x = 92,707.20 × 57,941.10
  4. Step 4: Simplify right side
    61,877.70x = 5,371,557,145.92
  5. Step 5: Solve for x
    x = 5,371,557,145.92/61,877.70
  6. Step 6: Final answer
    x = 86,809.26

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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.