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Finding the Fourth Proportional to 92,866.52, 128,163.75 and 52,587.38

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Solution

The fourth proportional to 92,866.52, 128,163.75 and 52,587.38 is: 72,575.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,866.52 : 128,163.75 = 52,587.38 : x
  2. Step 2: Convert to fraction form
    92,866.52/128,163.75 = 52,587.38/x
  3. Step 3: Cross multiply
    92,866.52x = 128,163.75 × 52,587.38
  4. Step 4: Simplify right side
    92,866.52x = 6,739,795,823.48
  5. Step 5: Solve for x
    x = 6,739,795,823.48/92,866.52
  6. Step 6: Final answer
    x = 72,575.09

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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.