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Finding the Fourth Proportional to 125,185.68, 172,760.22 and 68,600.52

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Solution

The fourth proportional to 125,185.68, 172,760.22 and 68,600.52 is: 94,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,185.68 : 172,760.22 = 68,600.52 : x
  2. Step 2: Convert to fraction form
    125,185.68/172,760.22 = 68,600.52/x
  3. Step 3: Cross multiply
    125,185.68x = 172,760.22 × 68,600.52
  4. Step 4: Simplify right side
    125,185.68x = 11,851,440,927.31
  5. Step 5: Solve for x
    x = 11,851,440,927.31/125,185.68
  6. Step 6: Final answer
    x = 94,670.90

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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.