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Finding the Fourth Proportional to 125,647.56, 173,403.54 and 71,949.48

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Solution

The fourth proportional to 125,647.56, 173,403.54 and 71,949.48 is: 99,295.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,647.56 : 173,403.54 = 71,949.48 : x
  2. Step 2: Convert to fraction form
    125,647.56/173,403.54 = 71,949.48/x
  3. Step 3: Cross multiply
    125,647.56x = 173,403.54 × 71,949.48
  4. Step 4: Simplify right side
    125,647.56x = 12,476,294,533.16
  5. Step 5: Solve for x
    x = 12,476,294,533.16/125,647.56
  6. Step 6: Final answer
    x = 99,295.96

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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.