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Finding the Fourth Proportional to 125,372.55, 173,017.15 and 68,783.92

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Solution

The fourth proportional to 125,372.55, 173,017.15 and 68,783.92 is: 94,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,372.55 : 173,017.15 = 68,783.92 : x
  2. Step 2: Convert to fraction form
    125,372.55/173,017.15 = 68,783.92/x
  3. Step 3: Cross multiply
    125,372.55x = 173,017.15 × 68,783.92
  4. Step 4: Simplify right side
    125,372.55x = 11,900,797,804.23
  5. Step 5: Solve for x
    x = 11,900,797,804.23/125,372.55
  6. Step 6: Final answer
    x = 94,923.47

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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.