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Finding the Fourth Proportional to 172,946.30, 259,528.80 and 101,868.80

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Solution

The fourth proportional to 172,946.30, 259,528.80 and 101,868.80 is: 152,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,946.30 : 259,528.80 = 101,868.80 : x
  2. Step 2: Convert to fraction form
    172,946.30/259,528.80 = 101,868.80/x
  3. Step 3: Cross multiply
    172,946.30x = 259,528.80 × 101,868.80
  4. Step 4: Simplify right side
    172,946.30x = 26,437,887,421.44
  5. Step 5: Solve for x
    x = 26,437,887,421.44/172,946.30
  6. Step 6: Final answer
    x = 152,867.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.