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Finding the Fourth Proportional to 125,759.93, 173,460.76 and 85,403.57

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Solution

The fourth proportional to 125,759.93, 173,460.76 and 85,403.57 is: 117,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,759.93 : 173,460.76 = 85,403.57 : x
  2. Step 2: Convert to fraction form
    125,759.93/173,460.76 = 85,403.57/x
  3. Step 3: Cross multiply
    125,759.93x = 173,460.76 × 85,403.57
  4. Step 4: Simplify right side
    125,759.93x = 14,814,167,078.10
  5. Step 5: Solve for x
    x = 14,814,167,078.10/125,759.93
  6. Step 6: Final answer
    x = 117,797.20

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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.