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Finding the Fourth Proportional to 125,990.01, 173,868.30 and 69,401.43

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Solution

The fourth proportional to 125,990.01, 173,868.30 and 69,401.43 is: 95,775.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,990.01 : 173,868.30 = 69,401.43 : x
  2. Step 2: Convert to fraction form
    125,990.01/173,868.30 = 69,401.43/x
  3. Step 3: Cross multiply
    125,990.01x = 173,868.30 × 69,401.43
  4. Step 4: Simplify right side
    125,990.01x = 12,066,708,651.67
  5. Step 5: Solve for x
    x = 12,066,708,651.67/125,990.01
  6. Step 6: Final answer
    x = 95,775.12

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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.