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Finding the Fourth Proportional to 172,710.50, 238,340.07 and 101,104.07

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Solution

The fourth proportional to 172,710.50, 238,340.07 and 101,104.07 is: 139,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,710.50 : 238,340.07 = 101,104.07 : x
  2. Step 2: Convert to fraction form
    172,710.50/238,340.07 = 101,104.07/x
  3. Step 3: Cross multiply
    172,710.50x = 238,340.07 × 101,104.07
  4. Step 4: Simplify right side
    172,710.50x = 24,097,149,929.38
  5. Step 5: Solve for x
    x = 24,097,149,929.38/172,710.50
  6. Step 6: Final answer
    x = 139,523.37

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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.