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Finding the Fourth Proportional to 91,109.52, 125,734.26 and 52,866.18

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Solution

The fourth proportional to 91,109.52, 125,734.26 and 52,866.18 is: 72,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109.52 : 125,734.26 = 52,866.18 : x
  2. Step 2: Convert to fraction form
    91,109.52/125,734.26 = 52,866.18/x
  3. Step 3: Cross multiply
    91,109.52x = 125,734.26 × 52,866.18
  4. Step 4: Simplify right side
    91,109.52x = 6,647,090,021.33
  5. Step 5: Solve for x
    x = 6,647,090,021.33/91,109.52
  6. Step 6: Final answer
    x = 72,957.14

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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.