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Finding the Fourth Proportional to 125,989.85, 173,865.99 and 69,401.22

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Solution

The fourth proportional to 125,989.85, 173,865.99 and 69,401.22 is: 95,773.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,989.85 : 173,865.99 = 69,401.22 : x
  2. Step 2: Convert to fraction form
    125,989.85/173,865.99 = 69,401.22/x
  3. Step 3: Cross multiply
    125,989.85x = 173,865.99 × 69,401.22
  4. Step 4: Simplify right side
    125,989.85x = 12,066,511,822.51
  5. Step 5: Solve for x
    x = 12,066,511,822.51/125,989.85
  6. Step 6: Final answer
    x = 95,773.69

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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.