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Finding the Fourth Proportional to 92,862.86, 128,149.43 and 52,575.57

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Solution

The fourth proportional to 92,862.86, 128,149.43 and 52,575.57 is: 72,553.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,862.86 : 128,149.43 = 52,575.57 : x
  2. Step 2: Convert to fraction form
    92,862.86/128,149.43 = 52,575.57/x
  3. Step 3: Cross multiply
    92,862.86x = 128,149.43 × 52,575.57
  4. Step 4: Simplify right side
    92,862.86x = 6,737,529,064.55
  5. Step 5: Solve for x
    x = 6,737,529,064.55/92,862.86
  6. Step 6: Final answer
    x = 72,553.54

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1.5x scale

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.