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Finding the Fourth Proportional to 61,975.86, 92,737.79 and 57,271.38

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Solution

The fourth proportional to 61,975.86, 92,737.79 and 57,271.38 is: 85,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,975.86 : 92,737.79 = 57,271.38 : x
  2. Step 2: Convert to fraction form
    61,975.86/92,737.79 = 57,271.38/x
  3. Step 3: Cross multiply
    61,975.86x = 92,737.79 × 57,271.38
  4. Step 4: Simplify right side
    61,975.86x = 5,311,220,925.09
  5. Step 5: Solve for x
    x = 5,311,220,925.09/61,975.86
  6. Step 6: Final answer
    x = 85,698.22

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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.